2.02 Transmitting Infection

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2.02 Transmitting
Infection
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Transmitting Infection

• Direct contact
• Indirect contact
• Airborne
• Vector-borne

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Transmitting Infection

• Direct contact
• Person to person
• Animal to person
• Mother to unborn child

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Transmitting Infection

• Indirect contact
• Pathogens are passed along on inanimate objects

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Transmitting Infection

• Airborne
• Pathogens are carried through the air
• Cling to surroundings and are spread

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Transmitting Infection

• Vector-borne
• Insects carry pathogen from host to host

Flea
Mosquito
Tick
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Transmitting Infection

• How you get an infection
• Causative agent
• Reservoir
• Portal of exit
• Mode of transmission
• Portal of entry
• Susceptible hostbreaking the chain!

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• Chain of Infection

Causative agent
Source or reservoir
Susceptible host
Portal of entry
Portal of exit
Mode of transmission
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Chain of Infection

• Causative agent
• pathogen

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Chain of Infection

• Reservoir
• area where the pathogen can live

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Chain of Infection

• Portal of exit
• way for the pathogen to escape from the reservoir

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Chain of Infection

• Mode of transmission
• way for pathogen to be transmitted

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Chain of Infection

• Portal of entry
• way to enter new reservoir

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Chain of Infection

• Susceptible host
• able to be affected
• person likely to get sick

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Chain of Infection
Causative agent
Source or reservoir
Susceptible host
Portal of entry
Portal of exit
Mode of transmission