COVID-19 vaccine effectiveness fell against infection after the Delta variant became dominant in the U.S., but remained high against hospitalization and death.
According to a new report published by the Centers for Disease Control and Prevention (CDC) on Friday, the shot's effectiveness against contracting Covid fell from 91 percent in April to 78 percent in July.
However, the effectiveness against hospitalization and death due to the virus stayed above 90 percent.
This means that, according to the CDC, fully vaccinated Americans are five times less likely to contract Covid, 10 times less likely to be hospitalized and 11 times more likely to die.
The report is part of a growing body of evidence that the vaccines became less effective after the highly transmissible Delta variant started circulating, but that they still protect recipients against the most severe outcomes linked to the virus.
A new CDC report found the COVID-19 vaccine's effectiveness against infection fell from 91% in April to 78% in July. Pictured: Number of cases per 100,000 among unvaccinated people (black line) versus vaccinated people (blue line) from April to July
The effectiveness against hospitalizations barely fell from 92% to 90% effective and barely fell against from 94% to 91%. Pictured: Number of hospitalizations per 100,000 among unvaccinated people (black line) versus vaccinated people (blue line) on left; deaths per 100,000 among unvaccinated versus vaccinated on right
For the report, the team looked at COVID-19 cases, hospitalizations and deaths in 13 U.S.
