![]() Sostman cautions against comparing the efficacy results from different clinical trials, because the trials were done at different times, with different coronavirus variants in the community, and often with different definitions of outcomes. ![]() The third vaccine approved for use in the United States, developed by Johnson & Johnson’s subsidiary company Janssen Biotech, showed an efficacy of about 66 percent against moderate to severe COVID-19 in clinical trials. More recent studies suggest that the real-world effectiveness of the Pfizer-BioNTech vaccine is also high - 94 percent in an Israel study, and 88 percent in a UK study. In clinical trials, two doses of the Pfizer-BioNTech or Moderna-NIAID vaccines had an efficacy against symptomatic COVID-19 of over 90 percent. “Now we have three FDA-authorized vaccines, with at least two more likely to be authorized this year.” “A year ago we didn’t know if vaccines would work at all, how effective they would be, or how long it would take to produce them,” he said. Dirk Sostman, president of the Houston Methodist Academic Institute, said the COVID-19 vaccines approved by the FDA have far exceeded the 50 percent efficacy bar set by the agency last fall. Still, health officials face an ongoing fight against the spread of COVID-19 misinformation - some of it perpetuated by the algorithms of social media sites such as Instagram.ĬOVID-19 vaccines approved in U.S. Recent polling, though, suggests that public willingness to be vaccinated is on the rise. This misinformation campaign comes as the vaccine rollout continues across the United States. The campaign against the widely used Pfizer-BioNTech vaccine is likely due to its potential competition against Russia’s Sputnik V vaccine, a report by the Alliance for Securing Democracy said. ![]() Some of the misinformation relied on actual news reports, but presented it without the broader context of data showing that the vaccines are safe and effective. The websites involved have questioned the efficacy of the vaccines, exaggerated the risk of side effects, and claimed that the vaccines were rushed through the Food and Drug Administration (FDA) approval process, the WSJ reported. Much of the misinformation is aimed at undermining confidence in Western vaccines, such as those developed by Pfizer-BioNTech and Moderna-NIAID. Top myths from Russian misinformation campaign State Department’s Global Engagement Center identified three Russian websites - New Eastern Outlook, News Front, and Oriental Review - that are spreading this misinformation and are linked to Russian intelligence. The Wall Street Journal (WSJ) reported March 7 on this misinformation campaign.Īn additional report from the Alliance for Securing Democracy found that during the COVID-19 pandemic, Russia along with other countries including Iran have tried to portray their response to the outbreak as superior to that of the United States and other western governments. Russian intelligence agencies are using online platforms to undermine confidence in COVID-19 vaccines being used in the United States, State Department officials said. Visit our coronavirus hub and follow our live updates page for the most recent information on the COVID-19 pandemic.
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