CNN CNN Newsroom With Ana Cabrera January 25, 2022 18:10:00
Know. this happens again every year, for example, with the flu. you have the best scientific information of what may be coming. and sometimes you get it at 80%. sometimes the virus is much smarter than us and it mutates to something that the vaccine doesnt work very well against. >> health advisers in israel say they have this data that shows a fourth vaccine dose provided people with more than three times the level of protection against serious illness and it also doubled the protection against...
Source: archive.org