I guess it depends on your definition of parasites. I think anything that feeds off your body's nutrients bit causes harm could be called a parasite....

https://www.2ndsmartestguyintheworld.com/p/dr-paul-marik-on-ivermectin-and-cancer

I guess it depends on your definition of parasites. I think anything that feeds off your body's nutrients bit causes harm could be called a parasite....