https://www.nbcnews.com/health/cold-flu/afraid-ev-d68-another-deadly-virus-actually-killing-kids-u-n214116
https://pubmed.ncbi.nlm.nih.gov/29778429/
https://www.webmd.com/skin-problems-and-treatments/news/20180801/2nd-baseball-player-has-hand-foot-mouth-disease
https://www.cbssports.com/mlb/news/yankees-j-a-happ-becomes-second-mlb-player-to-get-hand-foot-and-mouth-disease-this-season/
The second screenshot says that it is a disease that is commonly only seen in children. This was barely on the news at the time. How often do adults catch diseases common to childhood? A friend of mine knew an adult who caught it at the same time & had a lot of health issues after.
https://www.livescience.com/64252-hand-foot-and-mouth-disease.html