Pathogenesis of microbial infections Flashcards
What type of parasite replicates within host cells?
obligate intracellular parasite
What type of parasite replicates outside of a cell?
facultative parasites
What is the most common bacteria in resident skin flora
Staph. epidermidis
What is the most common bacteria in transient skin flora
Staph. aureus
What is an opportunistic infection
when non-pathogenic organism acts as a pathogen
What is immunopathogenesis
primary cause of cell death in infections - killing of cells by host immune system
What is the difference between signs and symptoms
Symptoms are experienced, signs are measured
Like thirst, lethargy etc are symptoms of diabetes; high blood sugar is a sign of diabetes
What is the prodromal stage of a disease?
stage in which non-specific symptoms occur
What is a sporadic disease
disease which only occurs occasionally like tetanus
What is an endemic disease
disease continuously present in a population like chickenpox
What is an epidemic disease
disease has greater number of cases than normal in an area like SARS in 2003
What is a pandemic disease
epidemic disease with worldwide distribution like the flu pandemic
What is the difference between a latent and chronic infection
Latent: reactivation which is symptomatic or asymptomatic
Chronic: continued production of infectious organism
What is a nosocomial infection
Infection acquired in hospital
What does MRSA stand for
methicillin resistant Staph. aureus
