Diphtheria is caused by

  • [AIPMT 1997]
  • A

    Bacteria

  • B

    Virus

  • C

    Nematodes

  • D

    None of these

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Why Mary Mallon is nicknamed as Typhoid Mary ?

Which one of the following sets includes the bacterial disease

Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid.

  • [NEET 2019]

Salmonella typhosa causes

Cholera, leprosy and diptheria are