Which of the following examples best demonstrates species resistance?
A)Certain strains of H1N1 virus infect both humans and pigs.
B)Certain strains of avian flu are transmissible between chickens, ducks, and other birds.
C)A worker at an animal shelter encounters a cat with Calicivirus, but cannot become sick with Calicivirus themselves.
D)A worker at an animal shelter encounters a cat with Calicivirus and infects their own cat at home after the cat is exposed to their work clothes.

Question

Quizplus · Accepted Answer

Species resistance is the ability of a host species to resist infection from a pathogen that can infect other, similar host species. In this case, the worker at the animal shelter encounters a cat with Calicivirus but cannot become sick with it themselves. This demonstrates species resistance as humans are not the natural host for Calicivirus, and therefore have some level of protection against it. The other options do not demonstrate species resistance as they involve pathogens spreading between multiple host species or infecting both animals and humans.

Which of the Following Examples Best Demonstrates Species Resistance