Moderna Inc’s experimental COVID-19 vaccine is more stable than expected at temperatures that ordinary refrigerators can provide and can be distributed using existing cold-chain shipping and storage infrastructure.That opens the door for its early use in hard to reach places that might not be appropriate for Pfizer Inc’s vaccine which needs ultra-cold storage.Here are details of how it could be distributed.Close Follow our LIVE blog for the latest updates of the novel coronavirus pandemic COVID-19 Vaccine Frequently Asked Questions View more How does a vaccine work? A vaccine works by mimicking a natural infection. A vaccine not only induces immune response to protect people from any future COVID-19 infection, but also helps quickly build herd immunity to put an end to the pandemic. Herd immunity occurs when a sufficient percentage of a population becomes immune to a disease, making the spread of disease from person to person unlikely. The good news is that SARS-CoV-2 virus has been fairly stable, which increases the viability of a vaccine. How many types of vaccines are there? There are broadly four types of vaccine — one, a vaccine based on the whole virus (this could be either inactivated, or an attenuated [weakened] virus vaccine);… Read full this story
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