The scattered reports from around the country can play like a cruel irony: Someone tests positive for the coronavirus even though they have already received one or both doses of a COVID-19 vaccine.
It has happened to at least three members of Congress recently:
— Adriano Espaillat, D-N.Y.
— Stephen Lynch, D-Mass.
— Lori Trahan, D-Mass.
But it has been reported in people in other walks of life, too, including Rick Pitino, a Hall of Fame basketball coach, and a nurse in California.
How Can That Happen?
Experts say cases like these are not surprising and do not indicate that there was something wrong with the vaccines or how they were administered. Here is why.
— Vaccines don’t work instantly. It takes a few weeks for the body to build up immunity after receiving a dose. And the vaccines now in use in the United States, from Pfizer-BioNTech and Moderna, both require a second shot a few weeks after the first to reach full effectiveness.
— Nor do they work retroactively. You can already be infected and not know it when you get the vaccine — even if you recently tested negative. That infection can continue to develop after you get the shot but before its protection fully takes hold, and then show up in a positive test result.
— The vaccines prevent illness, but maybe not infection. COVID vaccines are being authorized based on how well they keep you from getting sick, needing hospitalization and dying. Scientists don’t know yet how effective the vaccines are at preventing the coronavirus from infecting you to begin with, or at keeping you from passing it on to others. (That is why vaccinated people should keep wearing masks and maintaining social distance.)
— Even the best vaccines aren’t perfect. The efficacy rates for Pfizer-BioNTech and Moderna vaccines are extremely high, but they are not 100%. With the virus still spreading out of control in the United States, some of the millions of recently vaccinated people were bound to get infected in any case.
This article originally appeared in The New York Times.
more recommended stories
Disney launches Minnie Catrina, a ‘declaration of love’ to Mexico
The company explained that like its.
5 Things to Know About the Cancun Underwater Museum the MUSA
October 20, 2021.- Known locally as.
“I did what I had to do, I acted in a professional way,” Marcelo Ebrard said
MEXICO CITY, Oct 19 (Reuters) –.
US Congressmen ‘explode’ against AMLO’s electric reform
The congressmen warned that it represents.
In 20 of 32 Mexican states, the epidemiological traffic light is in green
Mexico City, Mexico — Twenty of.
A luxurious truck ends up in the swamp at the Cienega of Progreso, Yucatan
Progreso, Yucatán, October 20, 2021 (ACOM). –.
Police free eight hostages during a bank robbery in Cerro Azul, Veracruz
Cerro Azul, Veracruz — At least.
Use of facemask and other safety measures remain in place in Yucatan
The use of face masks remains.
Canada issues travel alert for insecurity in 13 states of Mexico
It even warns that police officers.
18 cenotes have been cleaned up in Yucatan this year
Mérida, Yucatán.- The cleaning and sanitation.