Pfizer's stock fell more than 3% while Moderna plunged 7% following the report, which cited four people familiar with the matter. The CDC notes that VAERS data does not establish causality and must be further investigated before conclusions can be drawn. FDA Commissioner Marty Makary told CNN last week that the agency is conducting an "intense investigation" into whether Covid shots caused deaths in children. Kennedy has dropped routine Covid vaccine recommendations for healthy children, teens and pregnant women and narrowed eligibility to older adults and those with underlying health conditions. He has also replaced all 17 members of the CDC's vaccine panel with his own appointees ahead of the Sept. 18-19 meeting.