Why Are Species Differences Important in Epidemiology?
Species differences are essential in epidemiology for several reasons:
1. Transmission Dynamics: Different species can act as reservoirs, vectors, or intermediate hosts for various pathogens. For instance, certain mosquito species are vectors for malaria, while others are not. 2. Susceptibility and Resistance: Species-specific genetic factors can influence susceptibility to infections. For example, humans are susceptible to the influenza virus, while certain bird species may carry the virus without showing symptoms. 3. Disease Presentation: The clinical presentation of diseases can vary between species. Rabies, for example, presents differently in humans compared to dogs or bats.
