Medical Sciences 250ab Chapter Notes - Chapter Exercize: Shigatoxigenic And Verotoxigenic Escherichia Coli, Orthomyxoviridae, Entamoeba

• School: Harvard University
• Department: Medical Sciences
• Course: Medical Sciences 250ab

Document Summary

This is mostly due to the extremely low ph of the stomach acid, which most bacteria can"t survive disinfection leads to low inoculum. More minor reasons are the presence of hydrolytic enzymes, including proteases, which partially damage microbes, and transport through the small intestine is much quicker than that within the large intestine, which gives them too little time to grow. A reservoir is a source (organism or object) in which the pathogen can survive, grow and replicate. Influenza virus: different animals such as the pigs, birds and humans: yersinia pestis causing plague: primarily rodents and also humans, clostridium tetani causing tetanus: soil, entamoeba histolytica causing amebiases: found in contaminated water and human faeces. Indirect contact/fomites: contaminated syringes in the case of hepatitis b or hiv, Mrsa via door handles in the hospital: waterborne transmission: vibrio cholerae in contaminated water, salmonella and.