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Rifampicin can reduce the efficacy of birth control pills or other hormonal contraception by its induction of the cytochrome P450 system, to the extent that unintended pregnancies have occurred in women who use oral contraceptives and took rifampicin even for very short courses (for example, as prophylaxis against exposure to bacterial meningitis).
The Enzyme Commission refers to this family as SARS coronavirus main proteinase (M pro; EC 3.4.22.69). The 3CL protease corresponds to coronavirus nonstructural protein 5 (nsp5). The "3C" in the common name refers to the 3C protease (3C pro ) which is a homologous protease found in picornaviruses .
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Scanning electron micrograph of SARS virions. Severe acute respiratory syndrome (SARS) is the disease caused by SARS-CoV-1. It causes an often severe illness and is marked initially by systemic symptoms of muscle pain, headache, and fever, followed in 2–14 days by the onset of respiratory symptoms, [13] mainly cough, dyspnea, and pneumonia.
One antiviral strategy is to interfere with the ability of a virus to infiltrate a target cell. The virus must go through a sequence of steps to do this, beginning with binding to a specific "receptor" molecule on the surface of the host cell and ending with the virus "uncoating" inside the cell and releasing its contents. Viruses that have a ...
Coronavirus vaccines require two shots to be fully effective, and it can take up to a few weeks for vaccinated people to develop immunity. An emergency-room doctor tested positive for coronavirus ...
The same is true for COVID-19, which has an updated vaccine for everyone ages 6 months and older, as well as respiratory syncytial virus, or RSV, with vaccination recommended for elderly people ...
Related: The 26 Funniest NYT Connections Game Memes You'll Appreciate if You Do This Daily Word Puzzle. Hints About Today's NYT Connections Categories on Friday, December 13. 1. These are commonly ...