SARS-CoV-2 variants

COVID-19 levels continue to be on the lower end throughout most of the U.S., as we remain in a lull between waves. Variant trackers are closely following the lineage BA.3.2 (or “Cicada”); while it seems to not be driving widespread outbreaks yet, data are limited.

COVID-19 levels remain low to moderate across most of the U.S. as of early April, as we are in a lull between surges. Data trackers are closely watching the BA.3.2 variant (also called “Cicada”); it may be driving outbreaks in select locations, but is not causing major increases yet.

Here are the latest national COVID-19 trends, according to the U.S. Centers for Disease Control and Prevention (CDC) and major wastewater surveillance providers: COVID-19 levels are low to moderate across most of the U.S., as we are in a lull between waves. But they are unlikely to get much lower without widespread public health measures.…

COVID-19 levels are relatively low across much of the U.S. as of late March — about as low as we generally see in plateaus between surges at this point in the pandemic, but still higher than what would be possible if widespread health precautions were still in place. Meanwhile, experts are monitoring a newer variant,…

After a slow start, the U.S.’s summer COVID-19 wave is now clearly taking off, with cases increasing nationwide according to all metrics. While the South and West Coast continue to report the highest disease levels, increases are happening across the country.

Bar chart titled, “Published Sequences from NS3, CDC Sequencing Contracts, and Other CDC Sequencing Efforts: Weekly Published Sequences.” The X axis represents time, from January 2021 to May 2025, while the Y axis represents SARS-CoV-2 sequences published each week. The number of sequences published increased and decreased along with COVID-19 spread from 2021 through 2023…

While there are signs of a summer COVID-19 wave on the horizon in the U.S., disease levels remain low to moderate across much of the country as of early June. I’m honestly surprised by the latest data — I expected more of a sharp increase by now. But the new variant NB.1.8.1, now spreading in…