COVID-19 Summer Surge Hits 43 US States as Cases Climb in August 2026

COVID-19 is surging again this summer across the United States, with the CDC confirming that infections are growing or likely growing in 43 states as of August 5, 2026. Wastewater surveillance data has reached high concentration levels nationwide over the past three weeks. While hospitalizations and emergency room visits are climbing, they remain at very low levels, and the virus continues to cause milder disease than in prior years.

Where COVID cases are rising fastest

The virus is spreading most aggressively in the South and West, but is also on the rise in the Northeast and Midwest. Four states are reporting moderate to high activity in wastewater data: California, Kentucky, Hawaii, and Alaska. According to CDC wastewater tracking, coastal cities in California and Florida are showing the highest viral concentrations. Emergency department visits for COVID-like illness rose from 0.1 percent of all visits in July to 0.3 percent in August.

Why summer has become COVID season

COVID-19 appears to have shifted into a seasonal pattern similar to the flu, with summer now the peak rather than winter. Crowded indoor spaces like airports, air conditioning that dries nasal passages, and more transmissible variants are driving spread. Waning vaccination immunity may also play a role. Dr. Susan Kline of the University of Minnesota noted that the lowest case rates typically occur in late June and early July, followed by a rise in August. Last year peaked in late August going into mid-September.

Hospitalizations remain low despite the surge

Even as cases climb, the overall burden on hospitals is minimal. Hospitalization and emergency room visits for COVID-like illnesses are inching higher but remain at very low levels. CDC forecasting points to infections continuing to rise into September before rates decline as fall approaches. Dr. John Brooks, an infectious disease doctor at Emory University, attributes the milder outcomes to growing herd immunity from prior infections and multiple vaccinations.

Who remains at risk

While most people experience mild illness lasting one to two weeks, COVID-19 still poses serious risks for vulnerable populations. Older adults, infants, and immunocompromised individuals face higher danger of severe disease, hospitalization, and death. The disease can still disrupt work and school attendance even in otherwise healthy people. Experts recommend that at-risk groups remain vigilant about prevention and vaccination status.

Final Thoughts

COVID-19 is climbing again this August, but the pattern is now predictable and the outcomes are milder. For most Canadians, the risk remains low, though older adults and immunocompromised individuals should monitor their vaccination status and consider precautions during crowded indoor gatherings.

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