The list of the most commonly used ones is here.
Of those, the Maz Hatters have the skills to contain disease outbreaks, but microorganisms and parasites aren't necessarily their specific job.
It's possible somebody has made lesser known MTFs about that for single articles, if you feel like searching through the articles for them.
Most likely MTF-Beta-7
Beta-7 is Maz Hatters, which has been mentioned already.