Airborne transmission of an illness occurs when bacteria or viruses travel on dust particles or on small respiratory droplets that may become aerosolized when people sneeze, cough, laugh or exhale.

Many Texas A&M University faculty, staff and students work directly or indirectly with materials that can be a source of infection or disease in the event of an injury or other unprotected exposure.

First aid is any emergency care or treatment given to an ill or injured person before regular medical aid can be administered.

Poison is a substance that through its chemical action can kill, injure or impair an organism.

Radiation is energy in the form of waves or moving subatomic particles.