epidemiology Flashcards
what causes a big spike in infections
a common host
types of transmisison
host to host
inderect host to host
which diseases are the easist to eliminate
ones which spend there entire lifecycle in just one host
*what was the causity agaent in the move
the deermouse
what are some factors which influence the emergense of a new pathogen
Human population shifts – one of the biggest reasons for a new virus or pathogen emergence
Tech– lack of exposrue over contorl such as over use of antibiotics
enconimic development and land use
*what is the walkerton outbreak
due to flooding in the area it was found that there was a mass outbreak of both tennis and boch due to the turing up of sediment and rock which conatied these bacteria
which type of bacteria is the most reisstance to dry conditions
Gram positive due to there thick peptinogylacn wall (staph is a example of a resistant gram postive found on the surface of the skin and in the nose)
what is the hardest type of pathogen to contol
one which does not care for the host and is able to live freely w out `
intoxication vs infection
intox– injesting posion made by the bacteria
infection– need to injest the whole bacteria as it needs to grow inside and develop