Its a well known problem for any type of infection and or vaccination in the area. They just wanted to write a sensationalist Covid story. It's annoying because there are significantly more relevant stories about ... well just about anything.

And since there are enough people just reading the headlines, its just fodder for anti vax conspiracies. You have to read the article to the very end to see that this is just very short term problem which is well known (by any competent radiologist/ob/gyn).