‘Pathogens' were discovered by

The spread of $AIDS$  disease is promoted by

A person is suffering from frequent episodes of nasal discharge, nasal congestion, reddening of eyes and watery eyes. These are the symptoms of

Pasteurella/Yersinia pestis (causal agent of Bubonic Plague) is transmitted by

Smoking increases ______ content in blood and reduces the concentration of haembound oxygen. Fill the blank suitably

In the life cycle of Plasmodium, sexual stages (gametocytes) begin to develop in