Well, can I say I contacted it 1st time 3 weeks ago after having 2 of the 3 "mandatory" shots in 2021 & 2022..plus shots in early part of Dec 2022 for Flu & Pneumonia..
stayed away from a large birthday party for 25 people in late Jan held outside & inside an open barn..
and days later a person that attended the party came to visit, and Bam..I got it, but very mild.