The treatment of snake-bite by antivenom is an example of
Artificially acquired active immunity
Artificially acquired passive immunity
Naturally acquired passive immunity
Specific natural immunity
Non-specific host defence that exists prior to the exposure to an antigen is called
Cancer is caused by
Match the disease in column $I$ with the appropriate items (pathogen/prevention/ treatment) in column $II$.
Column $-I$ | Column $-II$ |
$(A)$ Amoebiasis | $(i)$ Treponemapallidum |
$(B)$ Diphtheria | $(ii)$ Use only sterilizedfood and water |
$(C)$ Cholera | $(iii)\;DPT$ Vaccine |
$(D)$ Syphilis | $(iv)$ Use oral rehydration therapy |
Vector for ‘kala azar' disease is
‘Polio' is caused by