Transmission (medicine)

In medicine, transmission is the passing of a disease from an infected individual or group to a previously uninfected individual or group.

Related Topics:
Medicine - Disease

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The microorganisms (bacteria and viruses) that cause disease may be transmitted from one person to another by one or more of the following means:

Related Topics:
Bacteria - Virus

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• droplet contact - coughing or sneezing on another person
• direct physical contact - touching an infected person
• indirect contact - usually by touching a contaminated surface
• airborne transmission - if the microorganism can remain in the air for long periods
• fecal-oral transmission - usually from contaminated food or water sources
• vector borne transmission - carried by insects or other animals

Microorganisms vary widely in the length of time that they can survive outside the human body, and so vary in how they are transmitted.

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Transmission (medicine): Transmission, symptoms and survival ►