MCQ IN MEDICINE

Detailed explanation-1: -Reservoir host – an organism that harbors a pathogen but suffers no ill effects. However, it serves as a source of infection to other species that are susceptible, with important implications for disease control. A reservoir host individual may be reinfected several times.

Detailed explanation-2: -A vector is an organism that does not cause disease itself but that transmits infection by conveying pathogens from one host to another. Vectors may be mechanical or biological. A mechanical vector picks up an infectious agent on the outside of its body and transmits it in a passive manner.

Detailed explanation-3: -The common subject among many of these is a “host”, for which the medical definition is: “a harbouring organism that provides all the hospitality services to a guest organism”