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2d ago

COVID-19 Summer Wave Begins in 25 States as ‘Nimbus’ Variant Surges

Renewed booster recommendations follow a rise in wastewater viral levels to low readings with emergency visits matching winter highs.

Pedestrians cross the street Broadway and walk down Columbus Avenue in the North Beach neighborhood of San Francisco. COVID-19 is once again on the rise in California, according to wastewater surveillance data and CDC estimates. 
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Covid-19 cases are rising again across parts of the US.

Overview

  • The U.S. Centers for Disease Control and Prevention reports COVID-19 infections are rising in 25 states, marking the start of a summer wave.
  • National wastewater surveillance data climbed from very low to low levels across the country, offering a leading indicator of growing transmission.
  • California Department of Public Health figures show Bay Area sewage readings reached winter-high levels not seen since February.
  • CDC scientists highlight a biannual surge pattern driven by S1 spike protein evolution and note the NB.1.8.1 “Nimbus” variant is spreading widely.
  • Emergency department visits for COVID-19 in the Pacific Northwest and Southeast have reached their highest points since February and March, prompting officials to recommend booster shots.