![]() ![]() ![]() Watch Video: COVID-19: What to know about vaccines for children 5-11ĭata on how COVID-19 vaccination affects transmission is more complicated, but still promising. A preprint study, also conducted in the U.K., found that two doses of the Pfizer vaccine are 80% effective against preventing all infections with the delta coronavirus variant. "Yes, it is true that vaccinated individuals can also be infected by and spread SARS-CoV-2 to others," Shweta Bansal, an associate professor of biology at Georgetown University, said in an email. "However, the evidence is crystal clear that risk of transmission for a vaccinated individual is significantly lower than for an unvaccinated individual."īansal pointed to data from the United Kingdom, which shows the COVID-19 vaccines reduce the chances of getting infected by 50%-75%. The agency says on its website that, while breakthrough infections are possible, "most people who get COVID-19 are unvaccinated." Experts told USA TODAY the shots provide considerable protection against infection and transmission. CDC studies have also shown unvaccinated people are 10 times more likely to be hospitalized with COVID-19.įact check: Infected with COVID-19 in the past? You still need the vaccine, experts say jurisdictions between April and July, according to the Centers for Disease Control and Prevention. The vaccine rollout has affirmed those findings.įully vaccinated people made up about 9% of reported COVID-19 deaths in 13 U.S. ![]() (That number is lower partly because of the higher volume of COVID-19 cases in the general population during the trial period.) Johnson & Johnson's shot was found to be about 72% effective at preventing moderate to severe disease. Amesh Adalja, a senior scholar at the Johns Hopkins Center for Health Security, said in an email.ĭata from clinical trials indicate the vaccines from Pfizer-BioNTech and Moderna are about 95% effective at preventing symptomatic COVID-19 infections. "What we know is that individuals who are vaccinated are much less likely to be infected therefore much less likely to spread the virus," Dr. But experts and public health officials say the shots also protect people from contracting and spreading the virus. were designed to prevent severe infection, hospitalization and death. Vaccines decrease chances of infection, transmissionĪll three COVID-19 vaccines authorized in the U.S. USA TODAY reached out to The Lion's Roar for comment. "This is false information," Akiko Iwasaki, a professor of immunobiology and molecular, cellular and developmental biology at Yale University, said in an email. "Vaccines provide significant protection from 'getting it' – infection – and 'spreading it' – transmission – even against the delta variant." Experts and public health officials say they do protect people from getting infected and spreading the virus.įact check: COVID-19 vaccine protects both the person vaccinated and those around them Since then, public health officials have acknowledged the shots aren't 100% effective at preventing infection – and research suggests immunity wanes over time.īut that doesn't mean the COVID-19 vaccines are worthless. In clinical trials, all three vaccines authorized in the U.S. were found to be safe and effective at preventing severe COVID-19 cases. Similar claims have racked up tens of thousands of interactions on Facebook and Instagram over the past month, according to CrowdTangle, a social media insights tool. The post accumulated more than 69,000 shares within four days. 13 post from a page called The Lion's Roar. are you actually protecting others," reads text in a Nov. "Since the (vaccine) doesn't stop you from getting it or spreading it. But on Facebook, some still doubt whether the shots work. ![]() Children started receiving their vaccines in early November, and booster shots may be on the way for most Americans.ĬOVID-19 cases dropped after the vaccines were introduced in the spring. Watch Video: US lifts travel ban for vaccinated international tourists The claim: The COVID-19 vaccine doesn't stop you from getting or spreading the virus, so it can't protect others ![]()
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