More ‘dangerous’ Covid-19 variants may surface, Africa reels
Covid-19 may result in the emergence of more “dangerous” variants that can be challenging to control, according to the WHO. The pandemic, which.
Covid-19 may result in the emergence of more “dangerous” variants that can be challenging to control, according to the WHO. The pandemic, which.
Mixing and matching of Covid-19 vaccines is a “dangerous” trend as there is no sufficient backup data available to support its efficacy, the.