REFERENCES ‘Mary Mallon’ Wikipedia https://en.wikipedia.org/wiki/Mary_Mallon  ‘Germ Theory of Disease’ Wikipedia https://en.wikipedia.org/wiki/Germ_theory_of_disease  ‘10 Things You May Not Know About Typhoid Mary’ By Christopher Klein https://www.history.com/news/10-things-you-may-not-know-about-typhoid-mary  ‘The Frightening Legacy of Typhoid Mary’ by Veronique Greenwood for Smithsonian Mag https://www.smithsonianmag.com/history/the-frightening-legacy-of-typhoid-mary-180954324/  ‘Who Was Typhoid Mary?’ by Kiona. N. Smith for Forbes https://www.forbes.com/sites/kionasmith/2017/09/22/who-was-typhoid-mary/?sh=469847931e3e