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The Chain of Infection. Infectious Agent. The Chain of Infection. Infectious Agent. Reservoir Host. The Chain of Infection. Infectious Agent. Reservoir Host. Portal of Exit. The Chain of Infection. Infectious Agent. Reservoir Host. Portal of Exit. Mode of Transmission.
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The Chain of Infection Infectious Agent
The Chain of Infection Infectious Agent Reservoir Host
The Chain of Infection Infectious Agent Reservoir Host Portal of Exit
The Chain of Infection Infectious Agent Reservoir Host Portal of Exit Mode of Transmission
The Chain of Infection Infectious Agent Reservoir Host Portal of Exit Mode of Transmission Portal of Entry
The Chain of Infection Reservoir Host Infectious Agent Susceptible Host Portal of Exit Mode of Transmission Portal of Entry