Eastern newts exposed to varying concentrations of the fungal pathogen Batrachochytrium salamandrivorans demonstrated that higher initial exposure doses accelerate disease progression, increase mortality rates, and elevate pathogen shedding while shortening infectious periods. The research developed mathematical models incorporating dose-dependent transmission and environmental pathogen reservoirs, revealing that environmental transmission can sustain outbreaks even when direct contact rates are low. This wildlife disease research offers broader implications for human health by challenging traditional epidemiological assumptions that treat all exposures equally. The dose-response relationship identified here could inform public health strategies for managing infectious disease outbreaks, particularly in understanding how initial viral or bacterial loads influence disease severity and transmission dynamics. Environmental pathogen persistence mechanisms may also apply to human pathogens that survive in water, soil, or surfaces. However, this remains a preprint awaiting peer review, so these findings require validation. The study's focus on a single amphibian species and fungal pathogen limits immediate generalizability to human systems, though the mathematical modeling framework could be adapted for human infectious diseases where dose-response relationships are suspected but poorly quantified.