New variants are poised to keep Covid-19 circulating at high levels throughout the summer

Even as the US grapples with its most recent wave of Covid-19, new research suggests that variants on the horizon may keep case levels high.

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New coronavirus variants emerge: BA.4, BA.5 likely reinfecting Omicron survivors

BA.4 and BA.5 appear to be more transmissible than the original Omicron variant and have a better shot at evading existing immunity, given a new surge in South Africa.

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Engineering nanobodies as lifesavers when SARS-CoV-2 variants attack

Scientists are pursuing a new strategy in the protracted fight against the SARS-CoV-2 virus by engineering nanobodies that can neutralize virus variants in two different ways.
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COVID-19 shots might be tweaked if variants get worse

The makers of COVID-19 vaccines are figuring out how to tweak their recipes just in case the shots need an update against worrisome virus mutations
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