Injections of antitoxin or toxoid serum is given to prevent
Diphtheria
Small pox
Chicken pox
Chronic headache
$BCG$ vaccine is used against
Large group of lymphoid tissue in respiratory, digestive and urogenital tract are collectively called
The spread of cancerous cells to distant sites is termed as
The percentage of population suffering from mild mental disorders is
‘Hydrophobia' (Rabies) is a disease caused by