variants

New variants will keep COVID-19 circulating at high levels throughout the summer, experts say

New variants will keep COVID-19 circulating at high levels throughout the summer, experts say

Even as the U.S. grapples with its most recent wave of COVID-19, new research suggests that variants on the horizon may keep case levels high.The next influx of infections will probably come from the newer omicron subvariants BA.4 and BA.5, two closely related viruses that were first characterized in South Africa and that landed in …

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Two distinct monkeypox variants found in U.S., adding to outbreak’s mystery

Two distinct monkeypox variants found in U.S., adding to outbreak’s mystery

At least two genetically distinct monkeypox variants are circulating in the U.S., according to new sequencing data from the Centers for Disease Control and Prevention. Although the CDC hasn’t sequenced all 22 confirmed U.S. cases yet, two of them were found to be genetically similar to a 2021 infection in a Texas man who traveled …

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