$T.B.$ (Tuberculosis) is caused by:

'Cholera' is caused by

'Diphtheria' disease is connected with

Which antibiotic is used for the treatment of tetanus?

Assertion: $Escherichia$ $coli$,$Shigella$ $sp.$ and $Salmonella$ $sp.$ are all responsible for diarrhoeal diseases.
Reason: Dehydration is common to all types of diarrhoeal diseases and adequate supply of fluids and electrolytes should be ensured.

Which of the following diseases is spread by houseflies?