Several factors can influence the dose of a pathogen to which an individual is exposed: 1. Source of Infection: The type of source (e.g., contaminated water, food, or air) can determine the dose. 2. Mode of Transmission: Different modes of transmission (e.g., respiratory droplets, direct contact) can affect the dose. 3. Environmental Conditions: Temperature, humidity, and other environmental conditions can impact pathogen survival and dose. 4. Host Factors: The individual's immune status, age, and overall health can influence the effective dose of a pathogen.
