Protection From 4th Dose of COVID Vaccine Wanes Completely Within Months: Study

[Epoch-Times-Bot]

Protection From 4th Dose of COVID Vaccine Wanes Completely Within Months: Study

An Israeli study found that antibody levels after a fourth dose of the Pfizer BioNTech COVID-19 vaccine returned to similar levels as after the 3rd dose after about four months.
The study, conducted among health care workers at the Sheba Medical Center, the largest hospital in Israel, found that the immunological protection of the 4th dose "was much smaller and had waned completely by 13 weeks after vaccination."
It found "no substantial additional effectiveness over a third dose at 15 to 26 weeks after vaccination."
The authors concluded that these findings suggest the 4th dose and possible future boosters "should be timed wisely to coincide with disease waves or to be available seasonally, similar to the influenza vaccine."...

Source: Protection From 4th Dose of COVID Vaccine Wanes Completely Within Months: Study

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