With the COVID-19 omicron variant expected to be detected in the U.S. soon, public health labs are ramping up testing efforts and prioritizing sequencing of positive samples with an “s-gene dropout,” ...

African countries are stepping up measures to detect and control the spread of the Omicron variant as weekly new COVID-19 cases in the continent rise by 54% due to an upsurge in southern Africa. WHO ...

Research reveals a sharp decline in both the effectiveness and duration of protection from prior infection post-Omicron, underscoring the need for updated vaccines to sustain immunity Study: ...