Fact-checked by: Science Feedback

2020/11/23 | United States

NO EVIDENCE: COVID-19 vaccines will cause more severe disease through antibody-dependent enhancement

Explanation: Antibody-dependent enhancement (ADE) occurs when antibodies are unable to neutralize a virus’ infectivity, but instead enhance a virus’ ability to infect cells. Although ADE has been observed in humans who received the dengue vaccine, as well as in individuals that received a vaccine candidate for the respiratory syncytial virus, the evidence from COVID-19 vaccine clinical trials so far have not shown more severe disease occurring in vaccinated participants. People who have been given the COVID-19 vaccine will continue to be closely monitored to determine whether ADE occurs.

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This false claim originated from: Facebook users, Facebook

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