epidemioogy and pathogenicity

Question 1

infectious disease

Answer 1

infection by pathogenic microorganisms

Question 2

infection

Answer 2

invasion by multiplication of pathogenic microbe within or on a host

Question 3

infection stages

Answer 3

incubation period
prodromal stage
illness period
decline period

Question 4

infammation

Answer 4

non spec reaction by cytokines

Question 5

acute
2.
3.

Answer 5

2. asymptomatic

3. chronic

Question 6

disease time line:

Answer 6

trasmission to host
exposure
adherance
invasion
colonisation and growth 
tissue damage

Question 7

disease process:

Answer 7

exposure to pathogen 
adherance to skin 
invasion through epithelium 
colonise and grow
tissue damage disease

Question 8

koch’s postulate

Answer 8

specific casuative agent is observed in every disease case
agent isolated from diseased host and grown in pure culture
when agent from pure culture is innoculated into healthy but susceptible hosts agent cause same disease
agent is re-isolated from innoculated diseased host ident

Question 9

epidemology

Answer 9

study of relationships between various factors that deermine frequency

Question 10

taxonomy

Answer 10

sys class of living things/organisms

Question 11

sporatic disease

Answer 11

occasional at regular intervals

Question 12

endemic

Answer 12

in steady , but low freq @ regular intervals

Question 13

epidemic

Answer 13

sudden increase in occurrence above expected levels

Question 14

outbreak

Answer 14

sudden unexpected occurance

Question 15

index case

Answer 15

1st case in epidemic

Question 16

types of endemic

Answer 16

common source and porpagated

Question 17

what has rapid rise

Answer 17

common source

Question 18

commensal flora are

Answer 18

normal flora are those organsms living in benign symbiosis with host

Question 19

type of pathogens

Answer 19

primary

oppurtunistic

Question 20

type of carrier

Answer 20

incubatory carrier
active carrier
convalescent carrier
healthy carrier