Vaccinated people can expect to be infected by covid-19

Tens of thousands of vaccinated people may catch Covid-19, but the majority will not fall severely ill. The severity of the illness -- not the number of people who contract the virus -- is a crucial concept for people to understand at this point in the pandemic, said Dr. Rochelle Walensky, who heads the US Centers for Disease Control and Prevention.

"I think we all have to recognize that with 164 million people who are vaccinated, we should expect tens of thousands, perhaps, of breakthrough infections,Those breakthrough infections have mild illness. They are staying out of the hospital. They are not dying, and I think that that's the most important thing to understand,"Walensky said

Full vaccination is necessary for optimal protection against Covid-19 -- especially the highly contagious Delta variant,

"This is largely a problem when it comes to severe disease, the disease that requires hospitalization, it's among the unvaccinated. It really is pretty unusual to have a vaccinated person be hospitalized. Most of those people tend to be older and very, very frail. They never were able to respond to the vaccine, and we have the occasional immunocompromised person whose immune system also couldn't respond optimally to the vaccine,"dr. Schaffner said,a professor at Vanderbilt University Medical Center.

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