Israeli researchers found that protection conferred by Pfizer’s COVID-19 vaccine waned after several months across all age groups against the Delta variant, coming after a UK study revealed that the Delta variant is still highly transmissible among fully vaccinated household members.
In a study published in the New England Journal of Medicine, Yair Goldberg, of the Technion-Israel Institute of Technology in Haifa, found that the rates of infection in July were higher among adults ages 60 and older who got the vaccine in January, as compared with those who got the vaccine in March.
