PUBH 302 Exam 3 Galloway (11-16)
Questions and Answers 100% Solved
infectious disease - ✔✔disease caused by different classes of pathogenic
organisms
commonly called germs
virus or bacteria
noninfectious disease - ✔✔any disease not caused by a pathogen
-asthma, CVD, obesity
communicable disease - ✔✔infectious disease that may be passed from
individuals to individual
easily spread from one species to another
all communicable disease are infectious BUT not all infectious are
communicable
contagious disease - ✔✔very communicable disease, infectious disease
that very readily spread from person to person
1
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
,direct routes: skin to skin - ✔✔contact of skin between two or more
individuals
herpes type 1
direct routes: mucous to mucous - ✔✔urignetial tract, sexual contact
STI
direct routes: breast milk - ✔✔mother to babies and pass it through breast
milk
HIV
direct routes: across placenta - ✔✔mothers to babies during pregnancy
HIV, rubella
direct routes: sneeze/cough - ✔✔person to person, aerosolized
influenza, TB
indirect routes: food borne - ✔✔unprepared food, left out food, bacteria in
food
salmonella
indirect routes:water borne - ✔✔virus/ bacteria in water
2
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,cholera
indirect routes:vector borne - ✔✔asympotamotic carriers of pathogens/
mosquitos, ticks
malaria
indirect routes: airborne/ aerosolized - ✔✔person to object, person spreads
to objects, then another touches object
chickenpox, colds
epitriad: host - ✔✔person or living organism that can be infected (acts as a
reservoir)
-age
-sex
-genotype
-behavior
-nutrion status
-health status
epitriad: agent - ✔✔presence, excessive or relative absence essential to
occurrence of disease
3
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
, -infectivity (ability to infect)
-pathogencity (ability to cause disease)
-virulence (ability to case death)
-immungency (trigger immune system)
-antigenic stability (condition of infected)
epitriad: environment - ✔✔physical, biological, social, economic
-weather
-housing
-occupancy setting
-air quality
-food
-geography
conditions that increase risk of infections - ✔✔altered environments
changes in food production and handling'
climate changes
deforestation
4
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Questions and Answers 100% Solved
infectious disease - ✔✔disease caused by different classes of pathogenic
organisms
commonly called germs
virus or bacteria
noninfectious disease - ✔✔any disease not caused by a pathogen
-asthma, CVD, obesity
communicable disease - ✔✔infectious disease that may be passed from
individuals to individual
easily spread from one species to another
all communicable disease are infectious BUT not all infectious are
communicable
contagious disease - ✔✔very communicable disease, infectious disease
that very readily spread from person to person
1
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
,direct routes: skin to skin - ✔✔contact of skin between two or more
individuals
herpes type 1
direct routes: mucous to mucous - ✔✔urignetial tract, sexual contact
STI
direct routes: breast milk - ✔✔mother to babies and pass it through breast
milk
HIV
direct routes: across placenta - ✔✔mothers to babies during pregnancy
HIV, rubella
direct routes: sneeze/cough - ✔✔person to person, aerosolized
influenza, TB
indirect routes: food borne - ✔✔unprepared food, left out food, bacteria in
food
salmonella
indirect routes:water borne - ✔✔virus/ bacteria in water
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
,cholera
indirect routes:vector borne - ✔✔asympotamotic carriers of pathogens/
mosquitos, ticks
malaria
indirect routes: airborne/ aerosolized - ✔✔person to object, person spreads
to objects, then another touches object
chickenpox, colds
epitriad: host - ✔✔person or living organism that can be infected (acts as a
reservoir)
-age
-sex
-genotype
-behavior
-nutrion status
-health status
epitriad: agent - ✔✔presence, excessive or relative absence essential to
occurrence of disease
3
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
, -infectivity (ability to infect)
-pathogencity (ability to cause disease)
-virulence (ability to case death)
-immungency (trigger immune system)
-antigenic stability (condition of infected)
epitriad: environment - ✔✔physical, biological, social, economic
-weather
-housing
-occupancy setting
-air quality
-food
-geography
conditions that increase risk of infections - ✔✔altered environments
changes in food production and handling'
climate changes
deforestation
4
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
