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Airborne transmission
Disease transmission by airborne particles / From Wikipedia, the free encyclopedia
Airborne transmission or aerosol transmission is transmission of an infectious disease through small particles suspended in the air.[2] Infectious diseases capable of airborne transmission include many of considerable importance both in human and veterinary medicine. The relevant infectious agent may be viruses, bacteria, or fungi, and they may be spread through breathing, talking, coughing, sneezing, raising of dust, spraying of liquids, flushing toilets, or any activities which generate aerosol particles or droplets.
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![A red poster with illustrations and the text: "AIRBORNE PRECAUTIONS. EVERYONE MUST: Clean their hands, including before entering and when leaving the room. Put on a fit-tested N-95 or higher level respirator before room entry. Remove respirator after exiting the room and closing the door. Door to room must remain closed."](http://upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Airborne_Precautions_poster.pdf/page1-640px-Airborne_Precautions_poster.pdf.jpg)