![]() ![]() “Breakthrough infections in fully vaccinated people can efficiently transmit infection in the household setting,” wrote the study authors. Of those exposed to an unvaccinated household member, 23 percent contracted an infection. Researchers found that 25 percent of household contacts exposed to a fully vaccinated person in the household contracted an infection themselves. Vaccinated people can contract and transmit DeltaĪlthough fully vaccinated people were less likely to contract an infection, when they did - what’s known as a breakthrough infection - they can transmit the Delta variant at a similar level as unvaccinated people. The study was carried out in the United Kingdom, so all study participants were vaccinated with either the Pfizer-BioNTech or AstraZeneca COVID-19 vaccine. Annelies Wilder-Smith, a member of The Lancet Commission on COVID-19 and a consultant to the World Health Organization, wrote in an accompanying editorial. “These results underpin the key message that vaccinated contacts are better protected than the unvaccinated,” Dr. ![]() This is in a household setting, where people are in close contact for extended periods. In contrast, 38 percent of unvaccinated contacts got an infection. They found that household contacts who had received two doses of a COVID-19 vaccine were less likely to contract an infection with the Delta variant than unvaccinated people.Īccording to the analysis, 25 percent of vaccinated contacts exposed to a household member with an infection contracted one themselves. Researchers analyzed data from 204 household contacts of 138 people with a Delta infection. If we want to know how decent the vaccine protection of the country really is, Dean said, we need to know when vaccinated people are getting infected, what variant they have, and how severe their case is.In the new study, researchers focused on the transmission of the Delta variant within households, a common setting for coronavirus transmission. Instead they said, "You just have to quarantine, and you should be fine."ĭean said, given the low level of testing and sequencing being done on fully vaccinated people right now, there's no way the US can keep tabs on the virus well enough. Young said her doctor didn't encourage her to seek out confirmation with a laboratory test. Young is frustrated that the data on her own breakthrough case - which was detected with an at-home test - won't be recorded anywhere by the CDC. Now, we risk missing the signals of a more dangerous variant - something that our existing vaccines would barely combat. ![]() With Delta around, we know vaccinated people are not as well protected as they once were. This puts the US at a disadvantage as the virus continues to morph, doing its best to survive. Instead, the country relies on data from the UK and Israel to figure out how well COVID-19 can dodge our vaccines. In the US, unvaccinated people now account for 97% of COVID-19-related hospitalizations, the CDC said. "My worst fear happened, we survived it, and I think that's a direct result of being vaccinated," she said. She said her symptoms included a mild sore throat, congestion, headache, dizziness, fatigue, insomnia, and the loss of taste and smell. Hilary Young, a branding consultant in Philadelphia who's been fully vaccinated for more than two months, is another person who recently tested positive for COVID-19. Fully vaccinated people also tend to carry less virus in the back of their nose and throat, meaning they are probably less likely to spread COVID-19 to others, compared to unvaccinated people who are ill. The good news is that even with the more contagious Delta variant around, COVID-19 appears to be milder in vaccinated people, who may suffer symptoms such as coughs, headaches, temporary loss of taste and smell, and sore throats. Account icon An icon in the shape of a person's head and shoulders. ![]()
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