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Session 2 Microbio1

Microbio -1- Infectious disease intro

A pathological condition of body parts or tissues with identifiable signs and symptoms disease
disease caused by an infectious agents such as bacteria, virus, protozoan or fungus infectious disease
occurs when infectious agent enters body and begins to reproduce infection
term for an infectious agent that causes disease pathogen
organism infected by an infectious agent host
the relative ability of an infectious agent to cause rapid and severe disease in a host is called virulence
the degree of resistance a host has to a particular infectious agent immunity
What fraction of deaths world wide are caused by infectious disease 1/4 to 1/3
what accounts for 1/2 of all deaths of children under 5 infectious disease
what are the top killer infectious disease in the world HIV/AIDS, TB, Malaria,
incubation period time between infection and appearance of signs and symptoms
Prodromal phase mild nonspecific symptoms signaling onset of disease
point of disease when host experiences typical signs and symptoms essentially feels like crap clinical phase
Phase when signs and symptoms start to subside decline phase
recovery phase symptoms have disappeared and the patient begins to recover
Acute disease develops and runs course quickly
Chronic disease develops slowly and is usually less severe but can last for a long time
Latent disease alternates between periods of infection and times with no disease apparent
infection contained to specific area of the body local infection
generalized illness affecting most parts of the body systemic
initial infection in a previously healthy individual primary infection
infection that occurs in a person weakened by a primary infection secondary infection
How do infectious agents cause disease production of poisons (enzymes or toxins that destroy cells or tissues direct invasion and destruction of host cells triggering host immune system which leads to disease's signs and symptoms
Remember that personal characteristics provide chink in host's armor to allow disease ok
What disease thrives on malnutrition and alcoholism TB
Disease that takes advantage of dirt and body hair staph aureus
flourishes with testosterone and hormonal changes especially in teenagers propionibacterium acne
likes it when we don't dry between our toes atheletes foot
What infection thrive when antibiotics kill off microbiological competitors Candida and C difficile, and ecoli staph epidermidis
do diseases run the same course in all individuals no most disease are different for people some people get deathly ill while others hardly get sick at all
what is the likelihood that you will get infected with rabies or plague if exposed 100%
Created by: smaxsmith