ENH 122 Lecture Notes - Lecture 6: Hospital-Acquired Infection, Insecticide, Zoonosis

• School: Ryerson University
• Department: Environmental Health
• Course: ENH 122
• Professor: Jordan Tustin

Document Summary

For chronic diseases (like cancer for example) we investigate environmental factors: there"s usually clusters (a certain thing in a certain place caused it so there"s lots of cases in the area) Primary: person who brings the disease/ infection in to a pop. Secondary: people who are infected buy the primary people. Index: first case discovered during an outbreak. Reservoir: where the microorganism grows (can be a human, like with. Stds, or water, like ebola, etc. : recall that zoonotic means an infection jumps between species. If any of these arrows increase it will increase the number of incidence. Portal of exit could be like poop (fecal transition), blood, puss, etc. (from one person to another) When all these things come together to create a path for disease transmission. Vector: can transfer the disease (mechanical transition of the disease: ex. What makes a host: susceptible, immune system, genetics, poor health they must also be exposed so we look at: behavior, age,