CDC Move To Limit Investigations Into COVID Breakthrough Infections Sparks Concerns
NPRCDC Move To Limit Investigations Into COVID Breakthrough Infections Sparks Concerns Enlarge this image toggle caption Image Point FR/NIH/NIAID/BSIP/Universal Images Group via Getty Images Image Point FR/NIH/NIAID/BSIP/Universal Images Group via Getty Images The Centers for Disease Control and Prevention has stopped tracking every case that occurs when a COVID-19 vaccine fails to protect someone. And as we look at these breakthrough infections, these are the ones we're most concerned about," CDC Director Rochelle Walensky said at a White House COVID-19 briefing on May 18. Careful study of breakthrough infections also could provide useful information for improving the vaccines as well as revelations about possible long-term health effects of these infections on people who don't initially develop symptoms or only become mildly ill. "To say that a breakthrough infection has no clinical consequence, it feels too early to say that," says Kavita Patel, a primary care physician at the Brookings Institution. Sponsor Message "CDC will continue to look at vaccine effectiveness in all populations including people with mild infections, and that's being done through special studies, vaccine effectiveness studies and other monitoring in different populations and settings," Dr. Marc Fischer, who's leading the CDC's vaccine breakthrough team, told NPR.