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“You can get norovirus by accidentally getting tiny particles of feces (poop) or vomit in your mouth from a person infected with norovirus,” the CDC says. The reason it’s so contagious is ...
Many respiratory viruses make the rounds in fall and winter, making this prime time to brush up on your knowledge of common illnesses. But if you or a family member suddenly gets sick, it can be ...
If you do get sick, drink plenty of fluids (especially liquids with electrolytes), get plenty of rest and only eat soft, bland foods. This article was originally published on Dec. 12, 2024 and has ...
Diagnostic methods that can identify influenza include viral cultures, antibody- and antigen-detecting tests, and nucleic acid-based tests. Treatment of influenza in cases of mild or moderate illness is supportive and includes anti-fever medications such as acetaminophen and ibuprofen , adequate fluid intake to avoid dehydration, and resting at ...
The common cold is an infection of the upper respiratory tract which can be caused by many different viruses. The most commonly implicated is a rhinovirus (30–80%), a type of picornavirus with 99 known serotypes. [33] Other commonly implicated viruses include coronaviruses, adenoviruses, enteroviruses, parainfluenza and RSV. [34]
Viruses must invade cells in order to reproduce. Typically, a virus will reach the lungs by traveling in droplets through the mouth and nose with inhalation. There, the virus invades the cells lining the airways and the alveoli. This invasion often leads to cell death either through direct killing by the virus or by self-destruction through ...
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When a virus infects a cell, the virus forces it to make thousands more viruses. It does this by making the cell copy the virus's DNA or RNA, making viral proteins, which all assemble to form new virus particles. [37] There are six basic, overlapping stages in the life cycle of viruses in living cells: [38]