Three quarters of people infected with COVID-19 at public events in a Massachusetts town were fully vaccinated, a study by the U.S. Centers for Disease Control and Prevention (CDC) showed.
The study, published on Friday without naming the town, suggested the Delta variant of the virus was highly contagious.
The study found vaccinated individuals had a similar amount of virus presence as the unvaccinated, suggesting that, unlike with other variants, vaccinated people infected with the Delta variant could transmit the virus, the CDC said. CDC Director Rochelle Walensky said this was a "pivotal discovery" leading to CDC's recommendation this week that masks be worn in areas where cases were surging as a precaution against possible transmission by fully vaccinated people.
"The masking recommendation was updated to ensure the vaccinated public would not unknowingly transmit virus to others, including their unvaccinated or immunocompromised loved ones," Walensky said. Overall, 79% of the vaccinated individuals who were infected with COVID-19 also reported symptoms such as cough, headache, sore throat and fever. Four had to be hospitalized.
Brasil Últimas Notícias, Brasil Manchetes
Similar News:Você também pode ler notícias semelhantes a esta que coletamos de outras fontes de notícias.
CDC shares 'pivotal discovery' on Covid-19 breakthrough infections that led to new mask guidanceA new study shows the Delta Covid-19 variant produced similar amounts of virus in vaccinated and unvaccinated people if they get infected -- illustrating a key motivation behind the federal guidance that now recommends most fully vaccinated Americans wear masks indoors.
Consulte Mais informação »
COVID-19 live updates: New CDC brief says vaccines may be less effective against delta variantJapan’s government will put in place a coronavirus state of emergency covering three of Tokyo’s neighboring prefectures and Osaka on Monday.
Consulte Mais informação »
CDC says nearly 67% of U.S. counties have substantial, high COVID-19 transmissionThe Centers for Disease Control and Prevention (CDC) said on Wednesday that 66.6% of U.S. counties had transmission rates of COVID-19 high enough to warrant indoor masking and should immediately resume the policy. The transmission rate was up from 63.4% as of Tuesday. In total, 49.9% of U.S. counties have high COVID-19 community transmission rates and 16.7% have substantial rates, the CDC said.
Consulte Mais informação »
What Are ‘Breakthrough’ Covid-19 Cases?As the highly transmissible Delta variant spreads, more vaccinated Americans are reporting they have tested positive for Covid-19. Here’s what you need to know about these so-called 'breakthrough' cases.
Consulte Mais informação »
Sydney COVID-19 cases ease amid tightening of lockdown rulesSydney on Friday reported a slight easing in locally acquired cases of COVID-19 amid a further tightening of restrictions in the worst-affected suburbs, with the military summoned to help enforce lockdown rules.
Consulte Mais informação »
COVID-19 live updates: US reports highest number of new cases in the worldA pandemic of the novel coronavirus has now infected more than 195 million people worldwide and killed over 4.1 million of them.
Consulte Mais informação »