What Really Happened with Typhoid Mary?

What causes Typhoid Fever and how is it typically spread?

• A virus spread through airborne particles.

• A bacteria called Salmonella Typhi spread by infected food, water, or contact with bodily fluids.

• A fungus spread through direct skin contact.

• A parasite found in undercooked meat.

What does it mean for a person to be a 'carrier' of a disease like typhoid fever?

• They are very sick and show all the symptoms of the disease.

• They have been vaccinated against the disease and cannot get sick.

• They carry the disease-causing bacteria but do not show symptoms, yet can still spread it to others.

• They are immune to the disease and cannot spread it.

Why was Mary Mallon able to spread typhoid fever through her cooking, even though high temperatures usually kill bacteria?

• She intentionally added bacteria to the food.

• She cooked food at very low temperatures.

• She prepared non-cooked dishes, like peach ice cream, which allowed the bacteria to survive.

• The bacteria were resistant to heat.

What was the main reason Mary Mallon was eventually quarantined for more than two decades?

• She refused to get vaccinated against typhoid fever.

• She continued working as a cook under a different name after promising not to, leading to another outbreak.

• She developed severe symptoms of typhoid fever herself.

• She was found to be immune to antibiotics.