new flash cards

Question 1

What is an infection

Answer 1

successful coloniation of a host by a microorganism. infections lead to diseases and causes signs and symptoms

Question 2

What is a pathogen

Answer 2

microorganism that can cause disease

Question 3

what are primary pathrogen

Answer 3

cause disease in a host regardles of the hosts resient microbiota or immune systsem.able to cause disease in an otherwise healthy individual

Question 4

what are opportunistic pathogens

Answer 4

only cause disease in situations that compromise the host’s defences or when introduced to new environment

EX:e coli is normally found in microbiota in large intestine but is harmful and can cause UTI

Question 5

What is pathogenicity

Answer 5

the ability of a microbial agent to cause disease
the degree to which an organism is pathogenic is called virulence
to cause disease, a pathogen must successfully achieve four steps or stages of pathogenesis

Question 6

What are the 4 steps of pathogenesis

Answer 6

-exposure (contact)
-adhesion
-invasion
-infection (colonization)