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Micro Chapter 2 KT

QuestionAnswer
Anything that causes disease in humans Pathogen
Ability of the organism to cause disease Pathogenicity
The collection of all microbes on the human body is called the human... flora
Disease occurs when patient develops symptoms
Primary Pathogens cause disease after infection in a healthy host influenza ---> happens to everyone
opportunistic pathogens affect more immunocompromised individuals CF example --> pseudomonas
Latent infection Pathogen lives lifelong in host herpes ---> herpes
Virulence how dangerous a pathogen is
Virulence factors toxins, enzymes, adhesins
Host range the animals a pathogen can infect and produce disease in
Narrow host range small groups --> salmonella infects humans only
broad host range a lot of people can be infected --> swine flu and bird flu affects humans and birds
disruption of normal structure disease
sequelae after a disease resolves, pathological consequences called sequelae ----> strep throat can lead to rheumatic fever
stages of infectious disease 1. incubation (time you get sick) 2. prodromal ( initial symptoms) 3. illness (most sick) 4. convalescence (starts feeling better) 5. long term (hopefully produce memory lymphocytes)
morbidity rate of illness due to a disease
mortality rate of death due to a disease
common cold MM high morbidity, low mortality
rabies MM low morbidity, high mortality
fomite inanimate objets
vehicles of transmission food, water, feces
vectors of transmission ticks, mosquitoes
reservoir of infection harbors the pathogen like water
endemic an area consistantly has a low rate of a disease
epidemic disease cases increase in a community in a short time
pandemic epidemic that spreads world
zoonotic diseases animals that can be transmitted to humans lyme disease, rabies
portals of entry fecal oral, skin, respiratory, urinary, sex, eyes
Created by: jojojackson
 

 



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