chain and stages of infection-health1

Question 1

is an illness caused by harmful microscopic organisms that invade the body called pathogens

Answer 1

infection

Question 2

the harmful microscopic organisms tht invade are called?

Answer 2

pathogens

Question 3

determines how well it multiplies inside the body

Answer 3

infectivity

Question 4

it’s ability to cause disease is callled?

Answer 4

pathogenicity

Question 5

how well it causes severe disease

Answer 5

virulence

Question 6

describes the conditions that promote the transmission of diseases

Answer 6

chain of infection

Question 7

pathogen that causes the disease,bacteria,virus,fungi or parasite

Answer 7

infectious agent

Question 8

habitat where the infectious agent grows and multiplies

Answer 8

reservoir

Question 9

path which the agent leaves the reservoir through an open wound,body fluids etc

Answer 9

portal of exit

Question 10

how the agent gets from the reservoir or host

Answer 10

mode of transmission

Question 11

name the 2 ways of direct transmission

Answer 11

• direct skin to skin contact
• droplets spread when sneezing,coughing or talking

Question 12

name the 3 ways of indirect transmission

Answer 12

• airborne transmission
• vehicles such as food,water, biological products and formites(inanimate objects)
• vectors like feas ticks or mosquitos carry pathogens

Question 13

how the infectious agent enters the host

Answer 13

portal of entry

Question 14

person who is at risk of getting infected

Answer 14

suceptible host

Question 15

describes what happens once a susceptible host has aquired a pathogen

Answer 15

stages of infection

Question 16

name the stages of infection

Answer 16

1. incubation stage
2. prodrromal stage
3. period of illness
4. period of decline
5. convalescence

Question 17

depending on the illness it can last 2 days in acute disease to 7 months or years in chronic disease,

Answer 17

incubation period

Question 18

occurs when it initially enters the host and multiplies

Answer 18

incubation stage

Question 19

after the incubation period during this the pathogen continues to multiply and the host expierences general symptoms

Answer 19

prodromal stage

Question 20

after the prodomal stage,stage where the symptoms are most obvious and is the peak of infection or acme point

Answer 20

period of illness

Question 21

once acme point is reached the pathogens decrease as the immune system combats it however a secondary infection may occur

Answer 21

period of decline

Question 22

final stage of infection is a period of recovery and patients return to normal function although some dieseases may cause permanent damage to the body

Answer 22

convalescence period