Yeah a Dirty bitch who didn't wash her hands after she did a crap and then cooked for people. Resulted in spreading thyphoid in the food she cooked and many people died on multiple occasions. All this in a time before anti biotics and with lower understanding of communicable diseases and their transmission methods.
The only comparison for Mary with Thyphoid Fever and Covid CCP virus is the ability to spread without knowing. The difference though today is a mask would likely stop the transmission of CCP virus and people know to wash their hands. Mary never washed her hands and had no knowledge of what she was doing so what would we expect to happen.
As I was wondering where the Quoted words came from in this meme (couldn't find direct reference) I had a quick search and came across a Snopes Debunking which makes for a laugh. The story I was familiar with was that she had infected thousands of people. It's funny that Snopes doesnt believe the story of Mary. It would seem they have always exagerated the threat to induce compliance in the populations.