- Jul 13, 2018
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Because no one has survived this virus with a mild or asymptomatic case if he wasn't vaccinated? Is that your implication, because it is wrong?Lucky that he/she had been vaccinated so that the symptoms were mild.
Millions have. Most didn't even know they had it, or just had slight cold symptoms. Only the ones who had to seek medical care were ever counted. Everyone else just stayed home a week or two and went about his business.
The latest: Covid-19 Vaccines or Infections: Which Carries the Stronger Immunity?
“It is complicated but…we’re at a state in the world where [vaccination and prior infection] seem equally protective,” said Monica Gandhi, professor of medicine and associate chief of the University of California San Francisco’s division of HIV, infectious diseases and global medicine.
The two forms of immunity appear to have different strengths. Vaccination with mRNA vaccines produced higher concentrations of neutralizing antibodies—the type that prevent the virus from entering cells—than infection, although levels waned in both groups, according to a recent paper published in the journal Nature by researchers at the Rockefeller University in New York.
Immune memory, however, appears to be stronger following infection. The Rockefeller research group found in an earlier study, also published in Nature, that the antibodies produced by memory B cells—which quickly multiply in subsequent encounters with the virus—continued to evolve at least a year after infection. The study on vaccinated people found that the antibodies produced by their memory B cells didn’t change much over time.
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