China’s under-vaccinated population has fewer antibodies, and its jabs are less effective than those in the West at preventing severe disease
Save time by listening to our audio articles as you multitaskTwo characteristics matter most when assessing the threat of a sub-variant. The first is its intrinsic transmissibility, or its ability to spread in the absence of defences. This goes a long way to determining the risk of cases overwhelming hospitals.
In many Western countries the death rate among those with covid is indeed similar to that for the flu. Omicron kills 35 of every 100,000 infected people in Britain, a much lower rate than that of the Wuhan strain. But this dramatic fall in lethality has little to do with how the virus has mutated. Rather, it is down to more people having antibodies against covid, acquired through some combination of vaccination and infection.
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