The Yankees’ Covid virus outbreak could be bad news for ditching masks

Eight people Working for the New York Yankees baseball team, including a player It was tested positive As for Covid-19 – and they were all vaccinated against the virus a little over a month ago.

This sounds bad. But don’t panic. (Or, if you’re a Red Sox fan, stop smiling.) These “breakout” instances don’t mean that vaccines aren’t working, or that some of the sinister anti-vaccine variants have passed through a widespread pace across the Yankees. Closed closets. However, they mean it might be a little early to take off the masks.

Director Aaron Boone announced seven cases among staff members for the press on Wednesday; On Thursday the Yankees also put the Shortstop Jumper Torres On the list of those infected with Covid-19He contracted the disease in December, was vaccinated, and tested positive again. Fortunately, six of the seven employee’s cases were asymptomatic. The reason anyone finds them is because the team regularly tests staff and players.

This is the curve ball here. “Penetrations are not being reported, as many of them will be asymptomatic,” says Anna Isabel Pinto, a pathology ecologist at Indiana University’s School of Public Health. “Most people will not be tested unless told to do so, or they have symptoms.”

So it’s impossible to know how weird the outbreak of this team really is, because nobody knows the denominator – the number of people who, after vaccination, still get infected but never get sick. The Yankees got one dose of Johnson & Johnson vaccine on April 7th. This is enough time for their immune systems to wash completely against the virus. But there is no perfect vaccine. “Johnson & Johnson was 100 percent effective in preventing hospitalization and death, 85 percent effective against severe cases, and 72 percent effective in preventing moderate disease in various trials,” says Pinto. “So we expected that if vaccinated individuals became infected, they would likely be asymptomatic.”

In order to beat the raging pandemic, most Covid vaccines have been tested against their ability to prevent severe disease and death. They all do it very well. “But to see if this outbreak is consistent with the reported vaccine efficacy that J&J reported against infection, you want to compare the rates,” says Sarah Coby, an epidemiologist and evolutionary biologist at the University of Chicago.

Which we can do, approx. at Vaccine trials, Johnson & Johnson researchers have already tested some people for asymptomatic infection: Are the people in the trial who tested negative for the virus? Before Then the study came after that with a positive result for antibodies to the virus After that, did they catch the disease or not? About two and a half months after vaccination, 2.8 percent of people who did not get the vaccine developed the disease without symptoms. But so was 0.7 percent of people I did Get vaccinated. This is efficacy, prof Reduction in relative risk, From about 74.2 percent (with a very wide confidence interval, indicating that the statistical strength here is just like that). at Pre-print Posted earlier this week (so it hasn’t been peer-reviewed yet), independent researchers looking at real-world results from the J&J vaccine two weeks after the shot found that only three of the 1,779 people vaccinated had tested positive for the Covid-19 virus. 19, compared to 128 out of 17,744 unvaccinated people. This is a very good rate – but not 100 percent.

The problem is that the Yankees have not reduced the number of people vaccinated overall – a team spokesperson has not answered my questions – so it’s impossible to tell if eight breaches are so bad or are just equal to the course (if you “should pardon a borrowing from a sport Another complete).

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