colinnew
🇺🇸💉📝@COVID19Up: COVID-19 booster shots are less than 20% effective against Omicron infection a few months after the injection is given, according to a new study released on Wednesday (July 6).
The Italian study, which is a pre-print review and re-analysis of prior studies and has not been peer-reviewed, shows that protection against COVID-19 provided by the boosters wanes quickly.
“Booster doses were found to restore the VE [vaccine effectiveness] to levels comparable to those acquired soon after administration of the second dose; however, a fast decline of booster VE against Omicron was observed, with less than 20% VE against infection and less than 25% VE against symptomatic disease at 9 months from the booster administration,” the authors wrote in the paper.
Additionally, the researchers found that nine months after administration, two doses of a COVID-19 vaccine were less than 5% effective at stopping a symptomatic Omicron infection.
According to the CDC, less than a third of Americans have had a first booster dose at any point since they became available, and only about 5% of Americans have had a second booster dose.
