How are bacteria transmitted?



  1. 0 Votes

    Each species of bacteria is different, so harmful bacteria are transmitted in a variety of different ways depending on the species.  Some common methods of transmission incude:

    • Skin-to-skin contact, especially by the hands.  They can also spread from the skin to orifices, such as when you put your fingers in your mouth. 
    • Some bacteria release spores and can be transmitted through the air
    • Contaminated drinking water
    • Contamination from feces getting in the mouth; this happens a lot in places with poor hygiene, such as when people live together with large numbers of livestock animals. But it can also happen when you don’t wash your hands after using the bathroom. 
    • Exchange of bodily fluids, such as during sexual intercourse or sharing of hypodermic needles.

    To help fight the transmission of bacteria, make sure to wash your hands often, and when you’re sick, stay indoors!

  2. 0 Votes

    Bacteria can be transmitted through bodily fluids like saliva, fluid transmitted during sexual intercourse, or nasal mucus. Bacteria can also live in foods that you ingest. They can be present on door handles and other frequently touched surfaces. It is believed that social contact in general promotes bacterial exchange.

  3. 0 Votes

    Bacteria can enter through open orifices on your body like the mouth, ears, eyes, nose, anus, genitals, and open cuts, and can pass easily through weak mucous membranes like the ones found on your lips or inside your mouth. They can find a way in on food, during sexual acts, breathing, or on your own skin if you were to touch any of these openings, as well as many more. Our skin protects us from a lot of bacteria entering our body, and it is rare that bacteria can pass through the skin (although there are some infections that can happen on the skin).

    There are five main categories of transmission.

    Contact – Body to body, or body to surface to body

    Droplet – microscopic drops of fluids expelled through sneezing or coughing are inhaled or swallowed

    Airborne – bacteria present on free-floating dust particles are inhaled or swallowed.

    Common vehicle – through food, drink, air or blood, in other words, through a medium that all humans use for other means.

    Vector borne – Transmitted through another host, such as an animal bite or through another human.



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