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Journal articles on the topic 'Group b streptococcus agalactiae'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Nikonov, A. P., N. S. Naumenko, O. R. Astsaturova, A. V. Belova, and L. S. Aleksandrov. "Prevention of neonatal infection caused by group B streptococci." Voprosy ginekologii, akušerstva i perinatologii 19, no. 6 (2020): 12–16. http://dx.doi.org/10.20953/1726-1678-2020-6-12-16.

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Objective. To evaluate the prevalence of vaginal carriage of Streptococcus agalactiae among pregnant women at 35–37 weeks of gestation and assess the efficacy of intrapartum antibiotic prophylaxis (IAP) for group B streptococcus (GBS) infection in newborns. Patients and methods. We examined 800 pregnant women at 35–37 weeks of gestation (bacteriological examination of vaginal microbiota with biomaterial collected from the posterior vaginal fornix). Identified carriers of S. agalactiae who had vaginal delivery (n = 50) received antibiotic prophylaxis to prevent infection in newborns. We also ev

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2

Pashchenko, A. A., L. S. Dzhokhadze, Yu E. Dobrokhotova, T. S. Kotomina, and A. N. Efremov. "Practical tips on counseling pregnant women with group B Streptococcus infection." Russian Journal of Woman and Child Health 5, no. 1 (2022): 51–57. http://dx.doi.org/10.32364/2618-8430-2022-5-1-51-57.

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Interpretation of smears identified group B Streptococcus (S. agalactiae) in various titers in urogenital epithelium depending on gestation term and management of pregnant women requiring antibiotics are still disputable among inpatient and outpatient obstetricians and gynecologists. It was demonstrated that S. agalactiae persistence in pregnant women without timely antibacterial therapy during delivery to eliminate microbes is reliably associated with severe infectious complications in the early neonatal period (e.g., newborn meningitis or sepsis). This paper systematically reviews recent pub

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3

Manning, Shannon D. "Molecular epidemiology of Streptococcus Agalactiae Group B Streptococcus." Frontiers in Bioscience 8, no. 6 (2003): s1–18. http://dx.doi.org/10.2741/985.

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4

Savini, Vincenzo, Alessandro Santarelli, Angela Valentina Argentieri, Claudio D’Amario, Paolo Fazii, and Domenico D’Antonio. "Group B Streptococcus agalactiae interspecies exchange." Veterinary Microbiology 165, no. 3-4 (2013): 487–88. http://dx.doi.org/10.1016/j.vetmic.2013.03.023.

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5

TAPSALL, J. W. "Pigment production by Lancefield-group-B streptococci (Streptococcus agalactiae)." Journal of Medical Microbiology 21, no. 1 (1986): 75–81. http://dx.doi.org/10.1099/00222615-21-1-75.

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6

Ponnambath, Dinoop K., Jyothi E. Kaviyil, Kavita Raja, and Sravan Kumar. "Prosthetic Valve Endocarditis by Streptococcus agalactiae (Group B Streptococci)." Journal of The Academy of Clinical Microbiologists 26, no. 2 (2025): 54–57. https://doi.org/10.5005/jacm-11020-0009.

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7

Kawamura, Yoshiaki, Yoko Itoh, Noriko Mishima, Kiyufumi Ohkusu, Hiroaki Kasai, and Takayuki Ezaki. "High genetic similarity of Streptococcus agalactiae and Streptococcus difficilis: S. difficilis Eldar et al. 1995 is a later synonym of S. agalactiae Lehmann and Neumann 1896 (Approved Lists 1980)." International Journal of Systematic and Evolutionary Microbiology 55, no. 2 (2005): 961–65. http://dx.doi.org/10.1099/ijs.0.63403-0.

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The genetic relationship between Streptococcus agalactiae and Streptococcus difficilis was studied. S. difficilis was originally described as serologically non-typable but was later reported to be a group B, type Ib streptococcus. Upon comparative analysis of five gene sequences, it was found that S. agalactiae and S. difficilis are closely related. Sequence similarity values between these two species were 100·0 % for 16S rRNA, 99·6 % for gyrB, 98·6 % for sodA, 99·5 % for gyrA and 99·8 % for parC genes. These data strongly suggest that S. agalactiae and S. difficilis are synonyms. The biochemi

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8

TERAO, Michinori, Yuuichi OKAO, and Shuzo OKETANI. "Mechanism of Chloramphenicol Resistance in Group B Streptococci (Streptococcus agalactiae)." Journal of the Japanese Association for Infectious Diseases 61, no. 4 (1987): 449–55. http://dx.doi.org/10.11150/kansenshogakuzasshi1970.61.449.

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9

Erdogan, Sezgin, Peter K. Fagan, Susanne R. Talay, et al. "Molecular Analysis of Group B Protective Surface Protein, a New Cell Surface Protective Antigen of Group B Streptococci." Infection and Immunity 70, no. 2 (2002): 803–11. http://dx.doi.org/10.1128/iai.70.2.803-811.2002.

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ABSTRACT Group B streptococci (GBS) express various surface antigens designated c, R, and X antigens. A new R-like surface protein from Streptococcus agalactiae strain Compton R has been identified by using a polyclonal antiserum raised against the R protein fraction of this strain to screen a lambda Zap library. DNA sequence analysis of positive clones allowed the prediction of the primary structure of a 105-kDa protein designated BPS protein (group B protective surface protein) that exhibited typical features of streptococcal surface proteins such as a signal sequence and a membrane anchor r

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10

Będzichowska, Agata, Karolina Piotrowska-Lis, Paulina Rychcik, Bolesław Kalicki, Agnieszka Rustecka, and Agata Tomaszewska. "Sepsis and Streptococcus agalactiae meningitis in a 3-month-old boy." Pediatria i Medycyna Rodzinna 18, no. 1 (2022): 78–83. http://dx.doi.org/10.15557/pimr.2022.0010.

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Streptococcus agalactiae bacteria are a common cause of neonatal sepsis and meningitis. Universal screening of pregnant women for carriage and intrapartum antibiotic prophylaxis has significantly reduced the disease prevalence in children up to 7 days of age. However, it is to be remembered that group B streptococcal infection can also affect older children, even if their mothers have tested negative for Streptococcus agalactiae during pregnancy or underwent complete perinatal antibiotic prophylaxis. This paper presents a clinical case of a 3-month-old boy treated for sepsis and Streptococcus

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11

Nolla, Joan M., Carmen Gómez-Vaquero, Xavier Corbella, et al. "Group B Streptococcus (Streptococcus agalactiae) Pyogenic Arthritis in Nonpregnant Adults." Medicine 82, no. 2 (2003): 119–28. http://dx.doi.org/10.1097/00005792-200303000-00006.

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12

Kamaratos, A., S. Kokkoris, A. Tzanakari, et al. "Group B streptococcus (Streptococcus agalactiae) meningitis in a diabetic adult." Acta Diabetologica 42, no. 3 (2005): 117–18. http://dx.doi.org/10.1007/s00592-005-0189-8.

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13

Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, et al. "Effect of Biofield Energy Treatment on Streptococcus group B: A Postpartum Pathogen." Journal of Microbial & Biochemical Technology 7, no. 5 (2015): 269–73. https://doi.org/10.4172/1948-5948.1000223.

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Streptococcus agalactiae group B (S. agalactiae gr. B) is widespread in nature mainly causes bacterial septicemia and neonatal meningitis. The current study was attempted to investigate the effect of biofield treatment on S. agalactiae gr. B with respect of antimicrobial sensitivity, biochemical reactions and bio typing. S. agalactiae gr. B strain was used in this experiment bearing the American Type Culture Collection (ATCC 12386) number and stored according to the recommended storage protocol. The revived and lyophilized state of ATCC strains of S. agalactiae gr. B were selected for the stud

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14

Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, et al. "Effect of Biofield Energy Treatment on Streptococcus group B: A Postpartum Pathogen." Journal of Microbial & Biochemical Technology 7, no. 5 (2015): 269–73. https://doi.org/10.5281/zenodo.167155.

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Streptococcus agalactiae group B (S. agalactiae gr. B) is widespread in nature mainly causes bacterial septicemia and neonatal meningitis. The current study was attempted to investigate the effect of biofield treatment on S. agalactiae gr. B with respect of antimicrobial sensitivity, biochemical reactions and bio typing. S. agalactiae gr. B strain was used in this experiment bearing the American Type Culture Collection (ATCC 12386) number and stored according to the recommended storage protocol. The revived and lyophilized state of ATCC strains of S. agalactiae gr. B were selected for the stud

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15

Sikra, Alexandra Andreea, Cristina Mihaela Rimbu, Cristina Horhogea, Stefan Gregore Ciornei, Petru Rosca, and Dan Gheorghe Drugociu. "Dinamics of Group B Streptococcus and Enterococcus faecalis associated with genital tract infections of dairy cows from two farms of county Iași." Cluj Veterinary Journal 26, no. 1 (2021): 1–6. http://dx.doi.org/10.52331/cvj.v26i1.16.

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Abstract: The involution of the postpartum bovine uterus is accompanied by bacterial invasion. Studies show that most, if not all, bovine uteri are bacterially contaminated in the immediate postpartum period. The culture at this time will usually produce a wide range of bacteria, including Actinomyces pyogenes, Streptococcus spp., Staphylococcus spp. and Clostridium spp., Coliforms and Gram-negative anaerobes. The research is part of a larger study that aimed to isolate and identify potentially pathogenic bacteria from uterine secretions and their role in postpartum infections. To isolat

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16

Kim, Young Don, Mi-Hyun Song, and Moo-Sook Lee. "A Case of Neonatal Septic Arthritis Caused by Group B Streptococcus." Journal of Medicine and Life Science 11, no. 2 (2014): 189–92. http://dx.doi.org/10.22730/jmls.2014.11.2.189.

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Group B streptococcus (also indicated as streptococcus agalactiae) is a well-known cause of severe infections in younginfants but also an unusual microorganism to be isolated in case of septic arthritis, especially in newborns in Korea. Wereport a case of monoarticular septic arthritis caused by group B streptococcus in a 22-day-old baby.

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17

Akram, Muhammad, and Ijaz A. Khan. "Isolated Pulmonic Valve Endocarditis Caused by Group B Streptococcus ( Streptococcus agalactiae)." Angiology 52, no. 3 (2001): 211–15. http://dx.doi.org/10.1177/000331970105200309.

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18

Thong, Kwai-Lin, Goh Yee Ling, Leong Wing Kong, Lim Chin Theam, and Yun Fong Ngeow. "Macrorestriction analysis of Streptococcus agalactiae (group B Streptococcus) isolates from Malaysia." Journal of Medical Microbiology 53, no. 10 (2004): 991–97. http://dx.doi.org/10.1099/jmm.0.05384-0.

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19

Alfares, Khalid. "Tricuspid Infective Endocarditis Caused by Streptococcus Agalactiae After an Elective Abortion." Japan Journal of Clinical & Medical Research 4, no. 1 (2024): 1–2. http://dx.doi.org/10.47363/jjcmr/2024(4)172.

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20

Rajack, Fareed, Shawn Medford, Ali Ramadan, and Tammey Naab. "Emerging infection: streptococcal toxic shock-like syndrome caused by group B Streptococcus (GBS), Streptococcus agalactiae." Autopsy Case Reports 14 (2024): e2024497. http://dx.doi.org/10.4322/acr.2024.497.

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21

Warejcka, D. J., K. J. Goodrum, and J. K. Spitznagel. "Toxicity of group B Streptococcus agalactiae in adult rats." Infection and Immunity 48, no. 2 (1985): 560–64. http://dx.doi.org/10.1128/iai.48.2.560-564.1985.

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22

Wang, T., A. Fung, P. Woo, K. Yuen, and S. Wong. "Streptococcus agalactiae (Lancefield Group B) Bacteraemia in Nonpregnant Adults." European Journal of Clinical Microbiology and Infectious Diseases 21, no. 2 (2002): 140–42. http://dx.doi.org/10.1007/s10096-001-0679-8.

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23

Pritchard, David G., Shengli Dong, John R. Baker, and Jeffrey A. Engler. "The bifunctional peptidoglycan lysin of Streptococcus agalactiae bacteriophage B30." Microbiology 150, no. 7 (2004): 2079–87. http://dx.doi.org/10.1099/mic.0.27063-0.

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A group B streptococcal (GBS) bacteriophage lysin gene was cloned and expressed in Escherichia coli. The purified recombinant enzyme, calculated to have a molecular mass of 49 677 Da, lysed GBS cells. The susceptibility of GBS cells to lysis by the enzyme depended upon the growth stage at which they were harvested, with early exponential phase cells most sensitive. Calcium ions enhanced the activity of the enzyme. The enzyme also lysed other β-haemolytic streptococci, including groups A, C, E and G streptococci, but not common oral streptococci, including Streptococcus mutans. The generation o

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24

Oganyan, Kristina Al’bertovna, Ol’ga Nikolaevna Arzhanova, Alevtina Mikhaylovna Savicheva, and Svetlana L’vovna Zatsiorskaya. "Prophylactic antimicrobial drugs to pregnant women colonized with group B streptococcus." Journal of obstetrics and women's diseases 64, no. 2 (2015): 59–63. http://dx.doi.org/10.17816/jowd64259-63.

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Group B streptococcus (GBS), Streptococcus agalactiae, are the causative agents of severe infection of the fetus and newborn child. The aim of the study was to evaluate the efficacy of antibacterial drugs in women in the III trimester of pregnancy for the prevention of B streptococcal infection. Studied during childbirth and the postpartum period, 70 women colonized by group B streptococcus, treated and not treated with antibacterial perparaty in the III trimester of pregnancy. Evaluated as a new-born children of these women. In pregnant women who received antibiotics in the III trimester of p

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25

Furfaro, Lucy, Barbara Chang, and Matthew Payne. "Maternal Group B Streptococcus colonisation." Microbiology Australia 38, no. 3 (2017): 134. http://dx.doi.org/10.1071/ma17049.

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Streptococcus agalactiae, commonly known as Group B Streptococcus (GBS), is an important neonatal pathogen known to cause sepsis, meningitis and pneumonia. Australian pregnant women undergo screening during pregnancy in an effort to eradicate GBS before delivery where transmission to the neonate can occur. Preventative treatment includes intrapartum antibiotic prophylaxis and results in widespread treatment of the 10–40% of pregnant women colonised. GBS are separated into ten different capsular polysaccharide serotypes and previous studies have suggested associations between specific serotypes

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26

O'Reilly, Geralyn C., Jane E. Hitti, and Thomas J. Benedetti. "Group B streptococcus infection in pregnancy: an update." Fetal and Maternal Medicine Review 11, no. 1 (1999): 31–39. http://dx.doi.org/10.1017/s0965539599000145.

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Group B streptococcus (GBS), or Streptococcus agalactiae, has been a continuing focus of debate in the paediatric and obstetric worlds. The organism has emerged as the leading cause of early-onset neonatal sepsis. With an average of 20% of mothers being carriers for the organism (range from 15–40%), the following questions remain to be answered:1 How best to screen for GBS and which protocol to use?2 How best to counsel patients who are GBS carriers?3 What is the cost effectiveness of the screening protocols?

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27

Blackett, R. L., S. F. Hill, I. Bowler, J. R. Morgan, and G. E. Heard. "Mycotic aneurysm of the aorta due to Group B Streptococcus (Streptococcus agalactiae)." European Journal of Vascular Surgery 3, no. 2 (1989): 177–79. http://dx.doi.org/10.1016/s0950-821x(89)80015-5.

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28

Sari, Luh Gede Melia Puspita, Ni Nengah Dwi Fatmawati, I. Gusti Ayu Agung Praharsini, and Marvin Giantoro. "Colonization of Citrobacter koseri and Streptococcus agalactiae in a case of cellulitis cruris dextra et sinistra." Intisari Sains Medis 13, no. 2 (2022): 426–30. http://dx.doi.org/10.15562/ism.v13i2.1326.

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Background: Cellulitis is a skin infection involving the deep dermis and subcutaneous tissue, characterized by localized pain, swelling, tenderness, erythema, and warmth. The most common causes of cellulitis are group A streptococci and Staphylococcus aureus. Streptococcus agalactiae or the so-called group B Streptococcus can also cause cellulitis. This case report aims to evaluate the colonization of Citrobacter koseri and Streptococcus agalactiae in a case of cellulitis cruris dextra et sinistra. Case Presentation: A 53-year-old married woman presented to the outpatient clinic complaining of

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29

Rajack, F., A. Afsari, A. M. Ramadan, and T. J. Naab. "An Emerging Infection: Streptococcal Toxic Shock-Like Syndrome Caused By Group B Streptococcus (GBS), Streptococcus Agalactiae." American Journal of Clinical Pathology 154, Supplement_1 (2020): S140. http://dx.doi.org/10.1093/ajcp/aqaa161.306.

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Abstract Introduction/Objective Streptococcus agalactiae, Group B Streptococcus (GBS), is a major cause of neonatal sepsis and infections in pregnant women. However, incidence of invasive GBS infections has more than doubled in the last two decades with highest risk in adults 65 years or older. Other risk factors are diabetes, malignancy, and immunocompromised state. Bacteremia and skin soft tissue infections are the most common invasive infections in nonpregnant adults. Rarely GBS infection has a fulminating pyrogenic exotoxin-mediated course characterized by acute onset, multiorgan failure,

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30

Al-Sweih, Noora, Sitrat Maiyegun, Michal Diejomaoh, et al. "Streptococcus agalactiae (Group B Streptococci) Carriage in Late Pregnancy in Kuwait." Medical Principles and Practice 13, no. 1 (2003): 10–14. http://dx.doi.org/10.1159/000074044.

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31

Liu, Yuxin, and Jinhui Liu. "Group B Streptococcus: Virulence Factors and Pathogenic Mechanism." Microorganisms 10, no. 12 (2022): 2483. http://dx.doi.org/10.3390/microorganisms10122483.

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Group B Streptococcus (GBS) or Streptococcus agalactiae is a major cause of neonatal mortality. When colonizing the lower genital tract of pregnant women, GBS may cause premature birth and stillbirth. If transmitted to the newborn, it may result in life-threatening illnesses, including sepsis, meningitis, and pneumonia. Moreover, through continuous evolution, GBS can use its original structure and unique factors to greatly improve its survival rate in the human body. This review discusses the key virulence factors that facilitate GBS invasion and colonization and their action mechanisms. A com

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32

Buu-Hoi, A., C. Le Bouguenec, and T. Horaud. "High-level chromosomal gentamicin resistance in Streptococcus agalactiae (group B)." Antimicrobial Agents and Chemotherapy 34, no. 6 (1990): 985–88. http://dx.doi.org/10.1128/aac.34.6.985.

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33

Cohen, Adiel, Elchanan Parnasa, Nurith Hiller, et al. "Streptococcus agalactiae (Group B Streptococcus) – An Uncommon Cause of Postpartum Spinal Epidural Abscess." Infectious Diseases and Clinical Microbiology 3, no. 1 (2021): 31–34. http://dx.doi.org/10.36519/idcm.2021.24.

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34

Liakopoulos, V., E. Petinaki, S. Bouchlariotou, et al. "Group B Streptococcus (Streptococcus agalactiae) peritonitis associated with continuous ambulatory peritoneal dialysis (CAPD)." Clinical Nephrology 62, no. 11 (2004): 391–96. http://dx.doi.org/10.5414/cnp62391.

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35

Caínzos, Miguel, Ehijab Y. Hindi, Fernando Fernandez, Faustino Rodriguez-Segade, Aquilino Ferandez, and Joaquin Potel. "Wound Erysipelas Following Appendectomy Caused by Group B Beta-hemolytic Streptococcus (Streptococcus agalactiae)." Surgical Infections 2, no. 1 (2001): 37–40. http://dx.doi.org/10.1089/109629601750185343.

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36

Jobin, T., P. Harikrishna, B. Sreenath, L. Gian, L. Goncalo, and J. Siju. "Identification of an unusual Streptococcus agalactiae growing on MacConkey Agar and its confirmation by biochemical tests, qPCR and nanopore sequencing." Journal of Veterinary and animal sciences 55, no. 4 (2024): 675–79. https://doi.org/10.51966/jvas.2024.55.4.675-679.

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Streptococcus agalactiae belongs to Group B Streptococcus (GBS), an important Gram-positive pathogen attributed to mastitis and elevated somatic cell counts (SCC) in dairy cows, which invariably exhibits complete β-haemolysis on blood agar (BA) / Polymixin Nalidixic acid Blood Agar (PNBA) and fails to grow on MacConkey agar (MCA). The present study conducted in the Advanced Agricultural Laboratories under the Almarai company, Riyadh, KSA, reports the isolation, identification and characterization of β-haemolytic Strepotococcus agalactiae which exhibited lactose fermenting colonies on MCA. Thou

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37

Patras, Kathryn A., Philip A. Wescombe, Berenice Rösler, John D. Hale, John R. Tagg, and Kelly S. Doran. "Streptococcus salivarius K12 Limits Group B Streptococcus Vaginal Colonization." Infection and Immunity 83, no. 9 (2015): 3438–44. http://dx.doi.org/10.1128/iai.00409-15.

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Streptococcus agalactiae(group B streptococcus [GBS]) colonizes the rectovaginal tract in 20% to 30% of women and during pregnancy can be transmitted to the newborn, causing severe invasive disease. Current routine screening and antibiotic prophylaxis have fallen short of complete prevention of GBS transmission, and GBS remains a leading cause of neonatal infection. We have investigated the ability ofStreptococcus salivarius, a predominant member of the native human oral microbiota, to control GBS colonization. Comparison of the antibacterial activities of multipleS. salivariusstrains by use o

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38

Radu, Mihaela Corina, Anca Irina Dumitrescu, Adrian Calin Boeru, Loredana Sabina Cornelia Manolescu, Oana Roxana Dumitrescu, and Petru Armean. "Oxytocin in Induction of Labor in Pregnancy with Group B Streptococcal Portage." Acta Medica Transilvanica 25, no. 3 (2020): 42–47. http://dx.doi.org/10.2478/amtsb-2020-0049.

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AbstractIn the last two decades, group B streptococcus (GBS) infection has established itself as a major cause of perinatal morbidity and mortality. The purpose of this study is to identify if the electively induced labor with oxytocin in women with positive cultures of Streptococcus agalactiae, namely the group B streptococcus (GBS), helps the mother and fetus and decreases the risk associated with perinatal transmission of GBS compared with the spontaneous labor. Results associated with induction of labor with oxytocin compared with spontaneous labor in pregnant women who have GBS - positive

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39

SITKIEWICZ, IZABELA, and WALERIA HRYNIEWICZ. "Pyogenic Streptococci – Danger of Re-Emerging Pathogens." Polish Journal of Microbiology 59, no. 4 (2010): 219–26. http://dx.doi.org/10.33073/pjm-2010-034.

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Beta-hemolytic, pyogenic streptococci are classified according to type of major surface antigen into A (Streptococcus pyogenes), B (Streptococcus agalactiae), C (multiple species including Streptococcus dysagalactiae) and G (multiple species including Streptococcus canis) Lancefield groups. Group A Streptococcus causes each year hundreds of thousands deaths globally as a result of infections and post-infectional sequelae. An increasing number of severe, invasive infections is caused by selected, specialized pathogenic clones. Within the last 50 years, an increasing number of human infections c

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40

Kannambath, Rachana, Shruthi Vasanthaiah, Imola Jamir, Haritha Sagili, and Jharna Mandal. "The trends of isolation and antimicrobial susceptibility of group B Streptococcus in urine culture: a 7-years cross sectional study." International Journal of Reproduction, Contraception, Obstetrics and Gynecology 12, no. 6 (2023): 1784–88. http://dx.doi.org/10.18203/2320-1770.ijrcog20231555.

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Background: Group B Streptococcus (GBS)/Streptococcus agalactiae (S. agalactiae) is a common rectovaginal colonizer, thereby a potential agent of neonatal and maternal infection. This study estimates the trends of isolation of GBS, its antimicrobial profile in urine culture and the demographic characteristics of these patients over a 7-year period. Methods: A record-based study was conducted, which included all the urine culture reports of GBS/S. agalactiae from January 2014 to December 2020. The trend of occurrence of GBS bacteriuria, demographic characteristics and antimicrobial susceptibili

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41

Rosa-Fraile, Manuel, Javier Rodrï¿½guez-Granger, Ali Haidour-Benamin, Juan Manuel Cuerva, and Antonio Sampedro. "Granadaene: Proposed Structure of the Group B Streptococcus Polyenic Pigment." Applied and Environmental Microbiology 72, no. 9 (2006): 6367–70. http://dx.doi.org/10.1128/aem.00756-06.

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ABSTRACT The goal of this work was to determine the chemical nature of the red pigment produced by Streptococcus agalactiae, which has been thought to be a carotene. We extracted the pigment with 0.1 M KOH and purified it by column chromatography on Sephadex LH. Data from elemental analysis and mass and nuclear magnetic resonance spectra lead us to propose the structure to be that of a new ornithine rhamno-polyene with 12 conjugated double bonds, to which we have assigned the trivial name granadaene.

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42

Abdallah, Ebtsam Sayed Hassan, Walaa Gomaa Mohamed Metwally, Mootaz Ahmed Mohamed Abdel-Rahman, Marco Albano, and Mahmoud Mostafa Mahmoud. "Streptococcus agalactiae Infection in Nile Tilapia (Oreochromis niloticus): A Review." Biology 13, no. 11 (2024): 914. http://dx.doi.org/10.3390/biology13110914.

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Streptococcus agalactiae (Group B Lancefield) has emerged as a significant pathogen affecting both humans and animals, including aquatic species. Infections caused by S. agalactiae are becoming a growing concern in aquaculture and have been reported globally in various freshwater and marine fish species, particularly those inhabiting warm water environments. This has led to numerous outbreaks with high morbidity and mortality in fish. Nile tilapia (Oreochromis niloticus), a member of the Cichlid family, is one of the severely affected fish species by S. agalactiae. The current study aims to fo

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43

Patrick, Edafe Ejiro, Imarenezor Edobor Peter Kenneth, Anyiam Vivian Ifeoma, and Salvage Akpomedaye. "Prevalence of Group B Streptococcus among Individuals in Yenagoa, Bayelsa State, South South, Nigeria." African Journal of Medicine, Surgery and Public Health Research 1, no. 1 (2024): 54–65. https://doi.org/10.58578/ajmsphr.v1i1.4036.

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Streptococcus agalactiae also known as Group B Streptococcus (GBS) is a Gram-positive bacterium that primarily colonizes the gastrointestinal and genitourinary tracts of humans. While it is a commensal organism in many healthy individuals, GBS can become pathogenic, causing a variety of infections. This study investigated the prevalence of Group B Streptococcus (GBS) colonization among adults in Yenagoa, Bayelsa State, Nigeria, to assess the distribution of GBS across various age groups and between sexes. A total of 185 individuals were included in the study which comprises of both male and fe

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Kusumadewi, Yolanda Pitra, Afdina Melya Ganes Febiyanti, Ilma Tazkiya та ін. "Streptococcus agalactiae is resistant to β-lactam antibiotics in a diabetic patient with foot infection: a case report". Journal of Clinical Microbiology and Infectious Diseases 2, № 1 (2022): 1–5. http://dx.doi.org/10.51559/jcmid.v2i1.13.

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Introduction: Diabetic foot infection is a complication that often occurs in people with diabetes mellitus. Staphylococcus aureus is the most common microorganism found in diabetic foot infections. In addition, coagulase-negative staphylococci, Enterococcus faecalis, Streptococcus agalactiae, and Pseudomonas aeruginosa can also be demonstrated. Diabetic foot infection treatment usually takes a long time which may increasing the risk of antibiotic resistance. This article will present a unique and interesting case about Streptococcus agalactiae resistant to β-lactam infection. Case description:

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Davies, Mark R., Josephine Shera, Gary H. Van Domselaar, Kadaba S. Sriprakash та David J. McMillan. "A Novel Integrative Conjugative Element Mediates Genetic Transfer from Group G Streptococcus to Other β-Hemolytic Streptococci". Journal of Bacteriology 191, № 7 (2009): 2257–65. http://dx.doi.org/10.1128/jb.01624-08.

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ABSTRACT Lateral gene transfer is a significant contributor to the ongoing evolution of many bacterial pathogens, including β-hemolytic streptococci. Here we provide the first characterization of a novel integrative conjugative element (ICE), ICESde3396, from Streptococcus dysgalactiae subsp. equisimilis (group G streptococcus [GGS]), a bacterium commonly found in the throat and skin of humans. ICESde3396 is 64 kb in size and encodes 66 putative open reading frames. ICESde3396 shares 38 open reading frames with a putative ICE from Streptococcus agalactiae (group B streptococcus [GBS]), ICESa26

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Bauer, T. M., H. Pippert, and W. Zimmerli. "Vertebral osteomyelitis caused by group B streptococci (Streptococcus agalactiae) secondary to urinary tract infection." European Journal of Clinical Microbiology & Infectious Diseases 16, no. 3 (1997): 244–46. http://dx.doi.org/10.1007/bf01709590.

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Vittorino, Roselle, Joyce Hui-Yuen, Adam J. Ratner, Amy Starr, and Teresa McCann. "Case Report: Group B Streptococcus meningitis in an adolescent." F1000Research 3 (July 22, 2014): 167. http://dx.doi.org/10.12688/f1000research.4651.1.

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Streptococcus agalactiae (group B Streptococcus, GBS) usually colonizes the gastrointestinal and lower genital tracts of asymptomatic hosts, yet the incidence of invasive disease is on the rise. We describe a case of an 18 year old woman, recently diagnosed with lupus, who reported a spontaneous abortion six weeks prior to her hospitalization. She presented with fever, altered mental status, and meningeal signs, paired with a positive blood culture for GBS. Magnetic resonance imaging of her brain demonstrated an extra-axial fluid collection, and she was diagnosed with meningitis. She received

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Gase, Klaus, Joseph J. Ferretti, Charles Primeaux, and W. Michael McShan. "Identification, Cloning, and Expression of the CAMP factor gene (cfa) of Group A Streptococci." Infection and Immunity 67, no. 9 (1999): 4725–31. http://dx.doi.org/10.1128/iai.67.9.4725-4731.1999.

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ABSTRACT The CAMP reaction is a synergistic lysis of erythrocytes by the interaction of an extracellular protein (CAMP factor) produced by some streptococcal species with the Staphylococcus aureussphingomyelinase C (beta-toxin). Group A streptococci (GAS [Streptococcus pyogenes]) have been long considered CAMP negative, and this reaction commonly has been used to distinguish GAS from Streptococcus agalactiae. We here provide evidence that GAS possess this gene and produce an extracellular CAMP factor capable of participating in a positive CAMP reaction. The S. pyogenes CAMP factor is specified

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Klaric, Dragan. "Development of Acute Peritonitis after Gynecological Procedure in a Peritoneal Dialysis Patient." BANTAO Journal 13, no. 1 (2015): 46–47. http://dx.doi.org/10.1515/bj-2015-0010.

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AbstractAlthough the majority of peritonitis cases in peritoneal (PD) dialysis patients are caused by gram-positive cocci, streptococcus agalactiae, a gram-positive group B β haemoliticus streptococcus, may rarely be found in this group of patients. We present a case of acute peritonitis caused by streptococcus agalactiae with bacteriemia and septic shock occurring after a curettage indicated because of gynecologic bleeding. The patient did not receive antimicrobial prophylaxis since the gynecologist considered this case as a "routine" procedure without the need to administer antibiotics. Our

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Chang, Monique, and Burke A. Cunha. "Streptococcus agalactiae (Group B Streptococcus) Infective Endocarditis Complicated by Myocardial Abscess and Heart Block." Infectious Diseases in Clinical Practice 12, no. 2 (2004): 107–9. http://dx.doi.org/10.1097/01.idc.0000121026.62151.5b.

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