Healthcare Innovation October 2, 2025
Cases are escalating in nine U.S. states
Key Highlights
- New COVID variants XFB (Stratus) and NB.1.8.1 (Nimbus) are contributing to rising infection rates across multiple U.S. states.
- Wastewater surveillance shows ‘very high’ COVID levels in Nevada, Utah, Delaware, and Connecticut, indicating widespread community spread.
- The XFG variant now accounts for approximately 78 percent of cases in the U.S., up from 14 percent two months ago, signifying rapid dominance.
- Regions with low vaccination rates or no prior infection are particularly vulnerable to these emerging variants.
New COVID variants are driving a rise in infections, especially in the northeast over the past few weeks. In the US, nationwide Covid wastewater levels, used to measure the community spread of a virus,...
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