Academic literature on the topic 'Respiratory organs Diseases Immunological aspects'

The SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2) is a virus responsible for the COVID-19 pandemic outbreak. The virus has high infectious power and easy ability to spread geographically, due to the fact that the infection is asymptomatic in some cases. However, 25% of patients infected by SARS-CoV-2 can progress to the severity of the disease and develop acute respiratory distress syndrome (ARDS). The symptoms are commonly recognized as fever, dry cough, tachypnea, shortness of breath, sore throat, sneezing, nasal congestion, and other symptoms, including severe inflammatory responses with the evolution of cytokine storm, pneumonia, and sepsis. Here, we show the COVID-19 since infection in the host cell to Post-COVID-19 syndrome, relating the occurrence of virus variants, laboratory and immunological aspects, the major clinical manifestations and image findings, and all aspects associated with pulmonary damage promoted by the virus.

Although the COVID-19 pandemic was initially manifested as a contagious respiratory infection, its other aspects quickly became apparent. Accordingly, the disease could affect various organs such as skin, digestive system, and the central nervous system. Apart from these diverse manifestations, it was rapidly cleared that the virus could potentially play a role in causing a wide range of autoimmune diseases. Moreover, various anthropological aspects of COVID-19 and its effects on human life were considered. In this regard, one of the important issues is its psychological effects, not only on the population of healthy people, but also on people suffering from underlying diseases. Inflammatory diseases of the central nervous system are included as one group of these diseases. Since these diseases can cause many psychological problems in patients, it is very important to pay attention to them during the COVID-19 pandemic. In the following section, the psychological aspects of COVID-19 in patients with neuroinflammatory diseases are described.

No and yes. The skin, oropharynx, upper airways, gastrointestinal tract, and lower female genital tract are full of bacteria, with the highest concentration being in the colon and in dental plaque. Overall, humans are made up of slightly more bacterial cells than human cells; about 40 versus 30 trillion respectively. Although much less prominent, fungi and viruses are also present. In addition to these endogenous microbes, humans come into contact with numerous others on a daily basis—they are inhaled, ingested with food and drink, and picked up on the skin from the environment. Some of these remain in and on the human body for periods of time, while others slough off or die. In contrast to this, there are certain areas of the body where microbial agents are not expected to occur under normal circumstances. These are called sterile sites and include: major organs and their surrounding fluids and capsules; blood and body fluids other than faeces and saliva (yes, including urine!); bone, bone marrow, and joint fluid; subcutaneous tissue, fat, muscle, and tendons; the lower respiratory tract; and some of the genital tract. Microbes only enter these protected sterile sites through various breaches in physical and immunological defences. Again— no and yes. This is a question that has posed much debate over the centuries and seems to evolve as understanding of both humans and microbes expands. Early understanding of infectious diseases was based on the idea that the microbe was an aggressor and the host a passive victim. Currently there is a better understanding of the relationship between microbe and host, which is more of a dance than a war. In order to express an understanding of the relationships between host humans and microbes, a language is required that describes this confusing and complex interaction, especially considering that knowledge in this field is still evolving. The bacteria that reside in or on human bodies on a semi- permanent basis are called normal flora, or indigenous microbiome. Each person has a relatively unique set of fairly stable microbes likely determined by early experience, and continued exposures and diets.