Shifts in Disease Dynamics in a Tropical Amphibian Assemblage Are Not Due to Pathogen Attenuation Jamie Voyles University of Nevada, Reno Disease: a dynamic interaction that depends on the host, the pathogen and their shared environment. Disease rarely ends in host extinction Disease rarely ends in host extinction Epizootic 100% 50% 0% Number of Hosts Disease rarely ends in host extinction Epizootic 100% 50% 0% Number of Hosts Pathogen Prevalence Disease rarely ends in host extinction Epizootic 100% Epizootic- phase of rapid increase in pathogen prevalence and spread of 50% disease in wildlife hosts 0% Number of Hosts Pathogen Prevalence Disease rarely ends in host extinction Epizootic 100% Time 50% 0% Number of Hosts Pathogen Prevalence Disease rarely ends in host extinction Epizootic Extinction? 100% 50% 0% Number of Hosts Pathogen Prevalence Disease rarely ends in host extinction Epizootic Or Recovery? 100% 50% 0% Number of Hosts Pathogen Prevalence Disease rarely ends in host extinction Epizootic Or Recovery? 100% 50% 0% Number of Hosts Pathogen Prevalence