- 08 Oct 2021 21:20
#15193817
The protection Pfizer's Covid vaccine offers against being infected by the virus may begin waning in just a matter of months (perhaps around as little as two months).
After about 5 to 7 months, Pfizer's vaccine effectiveness appeared to be only around around 20%. Though it might actually be lower than that, since only about a third of the infections were diagnosed "on the basis of symptoms", which suggested that silent asymptomatic infections were more common.
Pfizer Protection Against COVID Infection Wanes, Still Prevents Death: Studies (insider.com)
https://www.insider.com/pfizer-covid-19 ... hs-2021-10
This really begs the question of whether forcing and coercing people to take these vaccines is really justified. If it's not preventing infection and the spread of the virus very much, what's the point? In that case it should be more of an individual decision.
They say the vaccine can still offer some protection against needing to be hospitalized after that, and that this type of protection begins waning after about 6 months.
"Protection against asymptomatic infection diminished more quickly than that against symptomatic infection, as would be expected in a vaccine that prevents symptoms," the researchers in Qatar said. "These findings suggest that a large proportion of the vaccinated population could lose its protection against infection in the coming months."
After about 5 to 7 months, Pfizer's vaccine effectiveness appeared to be only around around 20%. Though it might actually be lower than that, since only about a third of the infections were diagnosed "on the basis of symptoms", which suggested that silent asymptomatic infections were more common.
Pfizer Protection Against COVID Infection Wanes, Still Prevents Death: Studies (insider.com)
https://www.insider.com/pfizer-covid-19 ... hs-2021-10
This really begs the question of whether forcing and coercing people to take these vaccines is really justified. If it's not preventing infection and the spread of the virus very much, what's the point? In that case it should be more of an individual decision.
They say the vaccine can still offer some protection against needing to be hospitalized after that, and that this type of protection begins waning after about 6 months.
"Protection against asymptomatic infection diminished more quickly than that against symptomatic infection, as would be expected in a vaccine that prevents symptoms," the researchers in Qatar said. "These findings suggest that a large proportion of the vaccinated population could lose its protection against infection in the coming months."