Mary Mallon, known as Typhoid Mary, spread typhoid for years as a cook who was what?
AA healthy carrier
BA mosquito vector
CA secondary host
DAn immune person
Answer & Solution
Correct answer: A. A healthy carrier
She carried the bacterium without being cured and contaminated the food she prepared, so she was a typhoid carrier.
Keep practising Zoology Unit 6: Biology in Human Welfare
Browse all Zoology Unit 6: Biology in Human Welfare questions for AP EAMCET, or explore more Biology topics.
Related questions
Which gas is the main component of gobar gas?Which bacteria produce methane in biogas plants?The sediment of bacterial flocs in secondary sewage treatment is called what?What does BOD measure in sewage treatment?Statins that lower blood cholesterol are produced by which yeast?Which organism produces the immunosuppressant cyclosporin A?Streptokinase, a clot buster, is produced by which bacterium?Which bacterium produces acetic acid commercially?