Doctors explain the effectiveness of the COVID-19 vaccine after the nurse tests positive days after taking the first dose

SAN DIEGO, California – In southern California, a nurse started showing symptoms of COVID-19 six days after receiving the vaccine, and the test was positive two days later.

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Experts say this is because it takes time for antibodies to develop in your body.
“I have no problem putting needles on people as a doctor, particularly I don’t like having needles put on me,” said Dr. Amy Herold, chief physician at Queen of the Valley Medical Center in Napa, California.

She got the coronavirus vaccine just like thousands of others.

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In relation to what happened to the nurse in San Diego, “My guess is that they were exposed just before they received the vaccine and had no symptoms yet or soon after,” said Herold.

“It is a sad coincidence that if someone has already been exposed and vaccinated, the vaccine will not work in days. I mean, it works in days, but certainly not in less than a week, ”said Dr. Yvonne Maldonado, from Stanford.

Doctors told our sister station KGO-TV that the first injection of the vaccine gives 50% immunity, which does not start in one week with the Pfizer vaccine and two weeks with the Modern vaccine. The second dose then brings immunity to at least 90%.

Although neither is 100%, Herold said there was optimism at her hospital and she couldn’t help but smile when she got the vaccine.
“Under my mask, I have the biggest smile that I’m finally getting, because it looks like hope now and for all of us who are taking care of patients with COVID and we’ve kind of reached the limit now,” she said. “Having something to wait and wait for is a very powerful thing.”

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