RE:RE:RE:RE:Europe awares the risk of depending on Russia' EnergyNo, you will not find such blatant rubbish on the CDC site.
Vaccines provide long-term resistance against viruses that do not mutate quickly. Examples are red measles, rubella, and polio.
Vaccines provide shorter-term resistance against viruses that do mutate quickly. Examples are influenza and certain strains of the novel coronavirus.
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ckwong wrote: Vaccine is for germs not for virus because virus keep on mutate. Vaccine cannot handle it. If you dig up old CDC document, you may find it.