Diseases, Conditions, Syndromes

Defective epithelial barriers linked to 2 billion chronic diseases

Humans are exposed to a variety of toxins and chemicals every day. According to the epithelial barrier hypothesis, exposure to many of these substances damages the epithelium, the thin layer of cells that covers the surface ...

Diseases, Conditions, Syndromes

Herd immunity: When will we get there?

Before the COVID-19 pandemic, the term "herd immunity" was possibly something you only heard about during flu season or during reports of upticks in measles cases—if at all.

Diseases, Conditions, Syndromes

Few reported Covid infections after trial Barcelona gig

Six people out of 5,000 who attended an indoor trial concert last month in Barcelona reported testing positive for COVID-19 afterwards, organisers said on Tuesday, giving hope for the revival of the live music industry.

Medications

Could heart medications increase COVID-19 risk?

During infection, SARS-CoV-2 binds to a cellular receptor known as angiotensin converting enzyme 2 (ACE2) before entering a cell and replicating. Because it is not well established whether common blood pressure medications ...

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Infectious disease

An infectious disease is a clinically evident disease resulting from the presence of pathogenic microbial agents, including pathogenic viruses, pathogenic bacteria, fungi, protozoa, multicellular parasites, and aberrant proteins known as prions. These pathogens are able to cause disease in animals and/or plants. Infectious pathologies are usually qualified as contagious diseases (also called communicable diseases) due to their potential of transmission from one person or species to another. Transmission of an infectious disease may occur through one or more of diverse pathways including physical contact with infected individuals. These infecting agents may also be transmitted through liquids, food, body fluids, contaminated objects, airborne inhalation, or through vector-borne spread.

The term infectivity describes the ability of an organism to enter, survive and multiply in the host, while the infectiousness of a disease indicates the comparative ease with which the disease is transmitted to other hosts. An infection however, is not synonymous with an infectious disease, as an infection may not cause important clinical symptoms or impair host function.

This text uses material from Wikipedia, licensed under CC BY-SA