mechanisms of transmission

What Are the Different Modes of Transmission?

There are several modes of transmission, broadly classified into direct and indirect transmission:

Direct Transmission: This occurs when there is immediate transfer of the infectious agent from a reservoir to a susceptible host. Examples include:

Person-to-person contact (e.g., touching, kissing, sexual contact)
Droplet spread (e.g., coughing, sneezing)

Indirect Transmission: This occurs when the infectious agent is transmitted through an intermediary object or organism. Examples include:

Airborne transmission (e.g., inhalation of airborne particles)
Vehicle-borne transmission (e.g., contaminated water, food, or fomites)
Vector-borne transmission (e.g., mosquitoes, ticks)

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