HLSC 2130U Lecture Notes - Lecture 5: Lunch Meat, Foodborne Illness, Jaundice
15 Oct 2018
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Document Summary
Portal of exit how a pathogen leaves a reservoir. Portal of entry where pathogen enters the body. Surface water: communities, obtain from lakes, rivers, oshawa lake ontario. Dumping raw sewage in lakes and rivers. Surface water (lakes and rivers: cow-runoff rain water. Precipitation: too much water in a short amount of time, water doesn"t get treated. Water treatment : sedimentation, water and dirt, coagulation, coagulates dirt together with debris not settling through, filtration, chlorination. Hlsc 2130: kill any bacteria that may be alive. Safe = 1 coliform bacteria (gut-forming bacteria) Beach closes swimming in a sea of coliform bacteria: birds defecate, coliform contaminations. Ingest contaminated water, goes to colon, causes gastrointestinal issues. Transmission vehicle transmission (brought it to you: food or water, reservoir infected person, portal of entry orally, susceptible host anyone that drinks contaminated water. Self limiting: ends it cycle in the person all by itself, dehydration most likely kill the person unless medical intervention is applied (iv fluids).
