Anti-vaxxers use Delta breakthrough data to falsely claim vaccines don’t work

A recent study found that vaccinated people who contract the Delta variant can spread it to others, confirming what previous studies have reported. The study is being used by anti-vaccine advocates to falsely claim that vaccines don’t work. COVID-19 vaccines, like all vaccines, are not 100 percent effective at preventing disease. Although Delta-infected vaccinated people have a similar viral load as infected unvaccinated people, vaccinated people are far less likely to contract COVID-19 in the first place. Some data also suggests that vaccinated people are contagious for a shorter period of time than unvaccinated people, which reduces the likelihood that they will spread COVID-19 to others.

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The Public Health Communications Collaborative (PHCC) was formed in 2020 to coordinate and amplify public health messaging on COVID-19 and increase Americans’ confidence in guidance from the Centers for Disease Control and Prevention (CDC) and state and local public health officials.

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