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-sharejust 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.