A reservoir host harboring the pathogen but shows no ill effects and serves as a source of infection.
Reservoir hosts do not get the disease carried by the pathogen or it is asymptomatic and non-lethal. Once discovered, natural reservoirs elucidate the complete life cycle of infectious diseases, providing effective prevention and control.
Examples are marmots, black rats, prairie dogs, chipmunks and squirrels for bubonic plague.
- reservoir host