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发表于 2025-2-19 14:46
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Kfhq The world has been warned that the current Ebola epidemic may not end without the use of a vaccine 鈥?and no licensed vaccines exist yet. That may soon change, because scientists are making swift progress.This week, 800 vials of an experimental vaccine are being shipped to the World Health Organisation WHO from Canada. The hope is that, despite being an experimental, unlicensed vaccine, it will help prevent the spread of the disease, which has already infected 9,000 people, killing at least half of them.Stimulating protectionVaccines have been a key part of public health strategy against infectious diseases. That is how smallpox was eliminated and how polio and measles have been brought under control.Vaccin adidas samba es contain a weakened, or attenuated, version of the microbe, or some molecular part of it. These parts, or antigens as t mizuno hey are called, are recognised by your immune system, which can then make lo yeezy ng-lived antibodies and virus-specific T-cells to fight off that infection. Vaccination mimics the natural process where immunity is developed through adaptation, without the risky exposure to disease-causing microbes. This prevents infection and subsequent disease when you are exposed for real, in the coming weeks, months and years. Although this may sound easy, effective vaccines are notoriously difficult to make. We currently lack licensed vaccines for many common human infections, such as those caused by respiratory syncytial virus RSV and hepatitis C virus. In the curren Ujoi Jeremy Corbyn discusses Brexit,聽PFI,聽anti-Semitism聽and VenezuelaSh stanley cup ar stanley cup e on FacebookShareShare on TwitterTweet stanley cups uk Share on WhatsAppSendShare on WhatsAppSendShare on WhatsAppEmailLoad more share options |
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