Which historical figure was an early-20th century cook who acted as an asymptomatic carrier of Salmonella typhi and caused typhoid fever outbreaks?

Which historical figure was an early-20th century cook who acted as an asymptomatic carrier of Salmonella typhi and caused typhoid fever outbreaks?

• A. Catherine de Medici
• B. Anna Smith
• C. Typhoid Mary
• D. Maria Rodriguez

Answer: (C)

Asymptomatic carriers can shed a pathogen and spread it to others even when they feel fine. Salmonella typhi, the bacteria behind typhoid fever, can be present in a carrier and contaminate food through ordinary cooking and handling. The famous early-20th-century example is Typhoid Mary, the nickname for Mary Mallon, who worked as a cook and unknowingly carried the bacteria. Her meals were linked to multiple typhoid outbreaks, leading investigators to quarantine her to prevent further transmission. This case highlights why identifying carriers matters for preventing foodborne illness and how public health measures may restrict individuals when necessary to protect the broader community. The other names aren’t connected to this specific historical incident.

Asymptomatic carriers can shed a pathogen and spread it to others even when they feel fine. Salmonella typhi, the bacteria behind typhoid fever, can be present in a carrier and contaminate food through ordinary cooking and handling. The famous early-20th-century example is Typhoid Mary, the nickname for Mary Mallon, who worked as a cook and unknowingly carried the bacteria. Her meals were linked to multiple typhoid outbreaks, leading investigators to quarantine her to prevent further transmission. This case highlights why identifying carriers matters for preventing foodborne illness and how public health measures may restrict individuals when necessary to protect the broader community. The other names aren’t connected to this specific historical incident.