Hi there, I’m a medical student learning about typhoid fever, and just heard the case about Typhoid Mary for the very first time. And it’s just so strangely interesting to me.

I know medicine wasn’t very advanced in that time, but if this cook seriously went from family to family, where every household succumbed to the illness, and then had doctors approaching her telling her she was the cause, and then ignored them, and continued to experience everyone around her getting infected with typhoid fever... wouldn’t it cross her mind that the doctors were right and she should stop cooking?

I heard that she became a launderess and that it didn’t pay as much money, so she changed her name and continued to cook for people. But if you know you’re an asymptomatic carrier of a deadly disease, why would you knowingly continue to infect your fellow mankind? In my understanding she didn’t stop until she was forcibly quarantined to a hospital and not allowed to leave.

Maybe she didn’t believe the doctors immediately, but circumstantial evidence would raise suspicions. Why would she continue to cook and spread infection?

Are there any historical or socioeconomic reasons that I’m missing? I find it so hard to believe that it was simply out of her own selfishness (I’m still young). If any historians have any other insight into her case, I’d truly love to listen. Thank you for your time.