In a recent study posted to the bioRxiv* pre-print server, researchers described a case of co-infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern ...

XEC is on track to become the new dominant COVID-19 strain this winter. Yale and New Haven experts weigh in on why you should still get the new vaccine even though it may be less effective at ...

In a recent study published on the preprint server bioRxiv*, researchers find that there is likely recombination of genome sequences between the severe acute respiratory syndrome coronavirus 2 ...

Successive waves of Covid-19 have been driven by new variants. In Summer 2020, the B.1 variant swept the globe, receding in the Fall. The Winter of 2020 brought about the Alpha variant, which too fell ...

Researchers established a novel PCR-based, bacterium-free reverse genetics system for SARS-CoV-2 using the CPER method, which is simpler and faster than previous methods. Large numbers of recombinant ...

Public health experts are concerned about mutated versions of SARS-CoV-2, the virus that causes COVID, that combine the worst elements of different strains. When two or more slightly different ...

At the beginning of this year, the extremely contagious BA.1 variant (also known as the omicron variant) set an astonishing record: scientists believed it was likely the most contagious virus ever, ...