In the fourth year of the pandemic, Covid-19 is once again spreading across America and being driven by the recent holidays, fewer precautions and the continuing evolution of Omicron subvariants of the virus.
New sub-variants are causing concern for their increased transmissibility and ability to evade some antibodies, but the same tools continue to curtail the spread of Covid, especially bivalent boosters, masks, ventilation, antivirals and other precautions, experts said.
Yet booster uptake has been “pitiful”, said Neil Sehgal, an assistant professor of health policy and management at the University of Maryland School of Public Health. Antiviral uptake has been low, and few mandates on masking, vaccination and testing have resumed in the face of the winter surge, which is once again putting pressure on health systems.
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