HLTC25H3 Lecture Notes - Lecture 5: Zoonosis, Meningitis, Animal Virus
24 Apr 2022
School
Department
Course
Professor
Document Summary
Estimates place 60% of infectious diseases worldwide as zoonotic diseases; 75% of emerging disease are zoonotic in origin. Reverse zoonotic - the ability of humans to pass on disease into an animal population. Covid in captive lions in zoos getting covid from human to those animals we are able to pass on diseases same way that animals are able to pass their diseases on to us. Zoonotic disease transmission: direct animal contact, contaminated water. General transmission: pathogens moving from their animal mole into us, move from one individual to another using a vector like an animal or a mosquito or other insect. Spillover/ a pathogen - moving from one species to another (pathogen movement from one species to another) 1978 last (known) person to die of smallpox. 1980 who declares smallpox eradicated from the world -- no longer a reservoir for smallpox to hide. If eliminate it totally from the human population, there"s no reservoir, smallpox only a human source.
