IMED2001 Lecture Notes - Lecture 9: Murray Valley Encephalitis Virus, Opportunistic Infection, Candidiasis
26 Mar 2020
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Document Summary
Pathogenic microorganism: an agent (microorganism) capable of causing disease in a hot. Disease: a disorder of structure or function producing symptoms ( signs) in the host. Note that disease and infection are not necessarily the same thing. It is possible to be infected by a pathogen without disease being produced: can be infected without having a disease. Murray valley encephalitis: mosquitos, those have the disease have sever encephalitis, those who survive have neurological defects, those infected--- 1 in 1000 develop disease--- > have antibodies to the encephalitis without actually having the disease. A microorganism found in a host may be: an opportunistic pathogen, a pathogen, a commensal. Staphylococcus aureus: some pathogens may be carried following recovery from disease: E. g. salmonella typhi may persist in the faeces for months following recovery from disease. Hence may result in the infection of other people: asymptomatic carriers may serve as a source of infection for others. Infection acquired from uncooked meat or cat faeces.
