SAR HS 325 Lecture Notes - Lecture 11: Collect Pond, Ganges, Pollution
6 Feb 2019
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Name and explain two indirect ways that humans are increasing their exposure to and promoting the spread of pathogens. Continued use of wet markets increases the exposure to pathogens because many animals are kept in close proximity to each other and with humans, allowing for disease to spread at a much faster rate. Habitat destruction caused specialist species to lose their specific conditions and eventually force them to vacate an area. Meanwhile, animals that can survive in more general conditions due to their flexible diets and living situations are able to continue living in the area despite environmental destruction. Sailboats, steamboats, and canals all carry people deeper into the interior of nations. Iron ships, steamboats in particular, moved efficiently and worked through canals to transfer disease human-to-human when it could not have previously traveled by air. Cholera was originally considered to be a disease from asia, but was spread to europe through the ganges river, impacting russia, china, and persia.
