Flu epidemic
Warning of two nCoV strains that can cause a new wave of infections
The appearance and increase of BA.4, BA.5 in South Africa and some parts of the world made experts fear that it would cause a new wave of epidemics.
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The appearance and increase of BA.4, BA.5 in South Africa and some parts of the world made experts fear that it would cause a new wave of epidemics.
This variant has only been found in 5 patient samples in the world. However, it is still warned that it may be resistant to the Covid-19 vaccine thanks to a dangerous mu…