Coronavirus 2019-2020 thread (no unsubstantiated rumours!)
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You shouldn't, you have to take the exact same vaccine or else it's like starting over again.
That said, you might get more immune coverage against more virus variants.
It certainly wouldn't hurt to get multiple vaccines assuming no safety issues.
Every year the Flu vaccine cocktail consists of multiple separable vaccines that immunizes against like 4 strains if used together. How they do this depends on which variants they think will be dominant for the season.
If COVID does become seasonal, we can see a Flu/COVID combined vaccine. Also, progress towards COVID can also aid the development of Common Cold coronavirus vaccines.
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China has drastically scaled up its vaccine emergency use program in recent weeks. Since December 15, it has administered more than 3 million vaccine doses on "key groups" in the population, Zeng Yixin, vice-minister of China's National Health Commission, said at a news conference Thursday.
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Equation
Lieutenant General
I agreed with some of your statement and disagreed with some others. Racism maybe "meaningless" but it is alive and well throughout many Western white communities and nations. Especially the hard core misguided Christian ones who believes that God has given them the right to imperialize the world in order to "civilize it in the name of Jesus our Lord". They do NOT see ALL human as equal in their eyes unless you abide to their mythical Christian values, just like those ISIS terrorists. Why do you think there is a rise in right wing popularity throughout Europe and American for the last 10 years? Look at the Donald Trump, who wouldn't be this popular without the support of those racist right wing groups.
supercat
Major
In the meantime, while almost 3,700 died yesterday, I'm afraid that the U.S.' vaccine rollout is not much better than their management of the virus:
Regarding the Sinovac vaccine, so far the biggest overseas user will be Indonesia, followed by Turkey.
China can probably give out the vaccines for big discount/free if it's cheap enough.
Then let the world know how many vaccines 1 America TOW missile can buy as comparison.
The good thing about Sinopharm and Sinovac's more traditional vaccines is scalability due to exponential growth of the viruses for deactivation. Get more bioreactors and you can make a shitton of vaccines.
mRNA is synthesized sequentially and cannot be exponentially grown.
Actually, Sputnik V is 2 separate vaccines, the initial dose is type-26 (rAd26, component I) and second dose is adenovirus type-5 (rAd5, Component II). It provides insurance in case someone already has immunity to one of the adenovirus vectors.