Genetic variations can influence the spread of diseases in several ways:
1. Host Resistance: Certain genetic traits can make individuals more resistant to infections. For example, the CCR5-Δ32 allele provides resistance against HIV. 2. Transmission Dynamics: Variations in genes that affect behavior, immunity, and biology can significantly alter the dynamics of disease transmission in a population. 3. Pathogen Adaptation: Pathogens can adapt to the genetic makeup of their host population, leading to variations in virulence and transmission rates.
