Obesity may be a stronger risk factor for death, severe pneumonia and the need for intubation in men than in women with COVID-19, according to a study published in the European Journal of Clinical Microbiology & Infectious ...
May 06, 2021
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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 ...
May 06, 2021
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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.
May 04, 2021
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Addressing misinformation, using more inclusive communication, and promoting vaccination through trusted networks, could play important roles in reducing the high rates of vaccine hesitancy among ethnic minority healthcare ...
Apr 30, 2021
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The first study to use X-rays and CT scans to detect evidence of cancer among the skeletal remains of a pre-industrial population suggests that between 9-14% of adults in medieval Britain had the disease at the time of their ...
Apr 29, 2021
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A new study is drawing the most detailed picture yet of SARS-CoV-2 infection in the lung, revealing mechanisms that result in lethal COVID-19, and may explain long-term complications and show how COVID-19 differs from other ...
Apr 29, 2021
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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.
Apr 27, 2021
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Researchers at Karolinska Institutet have found links between certain blood groups and a total of 49 diseases, including a new finding that having blood group B seems to be a protective factor against kidney stones. The study, ...
Apr 27, 2021
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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 ...
Apr 26, 2021
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A study assessing how people with immune system deficiencies or dysregulations respond to COVID-19 vaccination has begun enrolling participants at the National Institutes of Health Clinical Center in Bethesda, Maryland. The ...
Apr 23, 2021
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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.
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