Post-COVID viral transmission Rare, even with positive evidence


FRIDAY, April 23, 2021 (HealthDay News) – Isolated NBA players who recovered from COVID-19 but tested positive for the virus did not infect others after leaving insulation, finds a new study.

That someone who has had COVID can infect other people has been a persistent fear, but these findings from the professional basketball league suggest that many who recover may reconnect with other people without spreading the virus, the researchers say.

“COVID-19 reinfection is possible, especially now with new variants, and every positive test should be taken seriously,” said Christina Mack, principal investigator at IQVIA, Real World Solutions in Durham, NC

This 2020 study, however, showed that sensitive tests such as RT-PCR can continue to produce a positive result after people have recovered from COVID. As part of the NBA campus, however, those people were not infectious, Mack said.

To complete the 2019-20 season, the NBA created a “bubble” in Orlando, Florida, a closed campus governed by scientific protocols to protect itself from COVID-19.

More than 3,500 people lived on campus and were subject to its protocols. All had daily RT-PCR tests. Some had recovered from a previous COVID infection.

“These recovered individuals were not sick and were not observed to be infectious to other people, but instead released virus particles at a low level left over from their previous infection,” Mack said.

“We observed that individuals could test positive up to 118 days after the onset of infection, and that, again, many of these individuals had tested negative most days surrounding the test or positive tests,” he said. to say.

Among the participants, 1% had persistent virus, most were under 30 and men. Antibodies were found in 92% of these persistent cases and all were asymptomatic. The researchers reported that these people were controlled and there was no transmission of the virus to other people.

Dr. Robert Glatter, an emergency physician at Lenox Hill Hospital in New York City, was not part of the study, but reviewed the results.

“The results of the study support the premise that asymptomatic people have been known [U.S. Centers for Disease Control and Prevention] The criteria for disrupting isolation, but having persistent RT-PCR test results, do not appear to be infectious to others, ”he said.

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