PATH 3610 Lecture Notes - Lecture 5: Diphtheria Toxin, Gram-Negative Bacteria, Multiple Drug Resistance

• School: University of Guelph
• Department: Pathology
• Course: PATH 3610
• Professor: Rob Foster

Document Summary

All children infected in the first 4 years. 25% incidence per year, prevalence is 100% in 4 years. Contagious = readily transferred from one to another under certain situations. Hiv is not contagious in everyday life but would be contagious if everyone is sharing needles. A lot of children die due to rotavirus. Viremia = virus in blood, causes flu-like symptoms and signs. Cause microencephaly (smaller brains) in infected babies. Prion (the reason of many single-use material in hospitals) Bacteria, fungi, protozoa, helminths (worms), arthropods (e. g. ticks) More individuals killed due to infectious diseases than due to physical wound. Politics play a major role in definitions. Define what the normal level for a disease is. Native, usually in an area with low prevalence. If a disease has a high mortality, it mean that the disease is probably new to that species or it is not part of that species" normal infection. Infectious agents and the host should reach a balance.