CNN CNN Tonight February 23, 2022 02:40:00
Rolling them out. the "new york times" cites several studies suggesting one covid booster does provide lengthy protection from the virus but how long does it last and how many boosters might we all need? lets bring in dr. sanjay gupta. sanjay, why would we need a fourth booster considering the studies showing the third shot provides strong protection? >> yeah. that is a good question, wolf. the data is still coming in on this. we know people started to get the boosters in the fall of last year a...
Source: archive.org