
COVID-19 and other infectious disease data continue to be very limited while the U.S. government is shut down. Last week, the CDC updated a couple of national COVID-19 metrics; this week, the agency didn’t even update that national trends page. And even when Congress reaches a budget deal, infectious disease surveillance will remain under threat…

COVID-19 data are limited this week due to the government shutdown, now the second time that vital disease surveillance has been interrupted since Trump took office in January. The CDC has not updated the majority of its COVID-19 and respiratory disease data pages since September 26.

COVID-19 levels continue to decline across much of the U.S. as we proceed down the other side of this summer’s wave. But infectious disease spread remains high, especially in parts of the West Coast and South that had the highest peaks this summer; plus, cases might be trending further up in parts of the Northeast…

During today’s United Nations (UN) event “Healthy Indoor Air: A Global Call to Action,” advocate Violet Affleck spoke about how clean air and masking are vital tools to address the ongoing COVID-19 pandemic.

After an uncertain few weeks, all available metrics now agree that the U.S. has passed the peak of its summer/early fall COVID-19 surge. But even as disease levels trend down, there is still a lot of SARS-CoV-2 going around, and levels are unlikely to drop too much further as we start getting into colder weather.…

To offer guidance on finding and interpreting infectious disease data during these confusing times, managing editor Betsy Ladyzhets talked to Caitlin Rivers, an epidemiologist at Johns Hopkins University’s Bloomberg School of Public Health and author of the popular newsletter, Force of Infection.

The latest COVID-19 data offer conflicting information about whether or not we’ve passed the peak of this year’s summer/early fall surge. While test positivity and emergency department visit numbers suggest we have, at least in some parts of the country, wastewater surveillance data report widespread increases through early September.

COVID-19 is still spreading at high levels in the U.S., as the variant XFG collides with the start of a new school year. Some data sources suggest that this summer-into-early fall wave may have reached its peak in parts of the West and South. But indicators are mixed and disease levels are still far from…

Screenshot of a CDC bar chart showing estimated SARS-CoV-2 variant prevalence in the U.S. The chart is titled, “Empiric Proportions and Nowcast Estimates in United States for 4-Week Periods in 9/1/2024 – 8/30/2025.” Each bar in the chart represents variant prevalence for a given month using sections in different colors, going from September 2024 to…

The U.S.’s summer COVID-19 surge continues, with cases increasing across all regions through early August, driven by travel and gatherings as well as the variant XFG. Despite the obvious increases in COVID-19 spread, the CDC’s wastewater dashboard — which recently updated its methodology — downplays current viral activity levels as “low.”





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