Rheumatic fever is common in which of the following age groups?

Which of the following communicable disease is the commonest in swimming pool except

Drug of choice for cholera for pregnant women is

Nosocomial infection is that infection acquired by

Maternal Mortality Ratio (MMR) is 

Causative organism of small pox is

All the following parasites reside primarily in gut except:

All are true about Diptheria except