Sounds like the vax to me:
https://www.wisconsin.golf/men/mens_professional/lucky-to-be-alive-steve-stricker-fell-seriously-ill-after-the-ryder-cup-spent-weeks/article_a6d0e730-6f1d-11ec-9b89-3b6e2416850c.html?utm_medium=social&utm_source=twitter&utm_campaign=user-share
'Lucky to be alive': Steve Stricker fell seriously ill after the Ryder Cup, spent weeks in the hospital and now is on long road to recovery | Men's Professional..
What started as a bad cough and sore throat in late October morphed into something far worse, something that caused his white blood cell count to soar, his liver count
https://www.wisconsin.golf/men/mens_professional/lucky-to-be-alive-steve-stricker-fell-seriously-ill-after-the-ryder-cup-spent-weeks/article_a6d0e730-6f1d-11ec-9b89-3b6e2416850c.html?utm_medium=social&utm_source=twitter&utm_campaign=user-share
In response Michael 379 to his Publication
just got note back from Mr. D'Amato who wrote this article, confirning that Strick got the shot and that the doctors of course know zero. what a surprise.