Infectious proteins are present in
gemini viruses
prions
viroids
satellite viruses.
Acquired immunity is due to
Which of the following sets of diseases is caused by bacteria?
Tse-tse fly is a vector for sleeping sickness which transmits the infective stage of which of the following parasite
First triple antigen vaccination is given to the child at the age of
Which disease in children is caused by intensive use of nitrate fertiliser