Study suggests BA.2 COVID-19 subvariant more contagious

Jan 31, 2022

The secondary attack rate was shown higher in Denmark for BA.2 than the original Omicron—39% vs 29%.

Lisa Schnirring | News Editor | CIDRAP NewsJan 31, 2022The secondary attack rate was shown higher in Denmark for BA.2 than the original Omicron—39% vs 29%.Read More

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