The disease ‘pneumonia’ is caused by
Virus
Cyanobacteria
Bacteria
Cold
$A$ : Typhoid carriers may be cured by surgical removal of their gall bladder.
$R$ : The disease germs remain concentrated in it.
Salmonella typhosa causes
Write a note on causative and symptoms of Typhoid disease.
Widal test is used for susceptibility of
Why Mary Mallon is nicknamed as Typhoid Mary ?