COVID-19

  • National COVID-19 trends, January 6

    National COVID-19 trends, January 6

    COVID-19 levels are increasing across most of the U.S. as of late December. But the flu is overshadowing COVID-19 in healthcare system impacts and headlines: flu is having a record season, driven by a variant called H3N2.

  • National COVID-19 trends, December 23

    National COVID-19 trends, December 23

    COVID-19 spread continues to increase across the U.S. as we head into the most travel-and-gathering-heavy part of the year. Flu levels are also going up, more aggressively than COVID-19. The holidays often come with delays in infectious disease data updates, so keep in mind that COVID-19, as well as flu and other pathogens, may be…

  • National COVID-19 trends, December 16

    National COVID-19 trends, December 16

    After a couple of weeks of uneven increases, COVID-19 spread is now clearly going up in the U.S. across most major metrics and most regions. Since the latest data are from early December, COVID-19 levels are likely much higher now in many places.

  • National COVID-19 trends, December 9

    National COVID-19 trends, December 9

    COVID-19 trends for the last week of November are similar to the rest of the month: disease levels are increasing in the Midwest and Northeast, but less so in the West and South. Our latest data include the Thanksgiving holiday, but not the full extent of outbreaks that followed it. Meanwhile, flu spread is accelerating…

  • National COVID-19 trends, December 2

    National COVID-19 trends, December 2

    While all U.S. COVID-19 metrics remain at low-to-moderate levels as of mid-November, wastewater data show clear signs of this year’s winter wave getting started in the Northeast and Midwest. The latest data are from before Thanksgiving, and the increases are likely to continue as outbreaks from holiday travel and gatherings show up in our numbers.

  • National COVID-19 trends, November 25

    National COVID-19 trends, November 25

    CDC data continue to come back online following the end of the government shutdown. Those data indicate that COVID-19 levels through mid-November remain much lower than what we see during surges, but are starting to increase in parts of the U.S.; different metrics disagree on which parts. More outbreaks are likely to follow the holiday…

  • National COVID-19 trends, November 18

    National COVID-19 trends, November 18

    CDC infectious disease data are starting to resume updates as the government shutdown ended last week, but some metrics remain unavailable. The data we do have suggest that we’re at the start of the U.S.’s winter COVID-19 wave, with cases rising particularly in the Northeast and Midwest, as well as a flu season that might…

  • National COVID-19 trends, November 11

    National COVID-19 trends, November 11

    Our view into COVID-19 and other infectious diseases in the U.S. remains severely limited by the government shutdown. While the data we do have suggest that COVID-19 spread is low to moderate across much of the country, wastewater surveillance indicates that cases are starting to increase in the Northeast and Midwest. Flu and RSV cases…

  • National COVID-19 trends, November 4

    National COVID-19 trends, November 4

    COVID-19 levels seem to be lower than usual for this time of year across much of the U.S. But that’s based on limited, inconsistent data, as we are now more than a month into a CDC data blackout caused by the government shutdown. That lack of data makes it harder to identify COVID-19 hotspots as…

  • National COVID-19 trends, October 28

    National COVID-19 trends, October 28

    We’ve now passed one month into the U.S. government shutdown — and one month without COVID-19 or other infectious disease data updates from the CDC. COVID-19 levels seem to still be in a lull between waves in much of the country, based on available sources, but the situation is very uncertain. And there are signs…