“We have three positive tests and we have three pending that we have performed rapid tests on,” Cashman said, saying the three positive rapid tests are confirmed by additional lab work.
Players with confirmed positive tests are pitchers Jonathan Loaisiga, Nestor Cortes Jr. and Wandy Peralta, according to the team. The three anonymous players have pending results.
The three named players have all been vaccinated, according to the team. Two of the players received Johnson & Johnson vaccines and the other was from Pfizer or Moderna, Cashman said.
The pitchers “have been doing well so far,” Cashman said, while declining to comment on the anonymous players until final confirmation of their positive tests is received by the team.
A ninth positive test, from infielder Gleyber Torres, was later determined to be a false positive, according to Yankees manager Aaron Boone.
The occasional breakthrough is not unexpected because no vaccine is perfect.
The single-injection J&J vaccine has been shown in previous clinical trials in the United States to be 72% effective against moderate Covid-19 and 85% effective against severe Covid-19. The Pfizer and Moderna vaccines were 90% effective at preventing infections after a full vaccination, according to a March report from the U.S. Centers for Disease Control and Prevention.
Thursday’s game between the Yankees and the Boston Red Sox has been postponed due to the positive tests. Both teams are scheduled to play at Yankee Stadium on Friday.
“We’re in a very fluid situation right now,” Cashman said.