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Doctor insights on: Highly Contagious Bacterial Infections

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Are bacterial infections contagious?

Are bacterial infections contagious?

Not the "infections": All bacteria are contagious, meaning that one person can smear some of his bacteria onto another's skin or other body part. The bacteria can then die, multiply on the surface (colonize the surface), or damage the person's cells and body parts (start an infection). No infection occurs in many cases, meaning the "infection" did not spread to the person even though the "bacteria" did spread to him. ...Read more

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Dr. Melissa Gowans
9 doctors shared insights

Infection (Definition)

Infections are invasions of some other organism (fungus, bacteria, parasite) or viruses into places where they do not belong. For instance, we have normal gut bacteria that live within us without causing problems; however, when those penetrate the bowel wall and enter the bloodstream, ...Read more


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Are bacterial infections contagious?

Are bacterial infections contagious?

Sometimes: Some bacterial infections are, like strep throat, or pink eye, but many develop that are not really contagious, like sinusitis, cellulitis, or diverticulitis. If you have a concern, you should discuss the specifics with your doctor. It is also always a good idea to always wash your hands or use hand sanitizer, whenever you are out, like shopping, airports, grocery stores etc to minimize risks. ...Read more

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Are all bacterial infections contagious?

Are all bacterial infections contagious?

Not the "infections": All bacteria are contagious, meaning that one person can smear some of his bacteria onto another's skin or other body part. The bacteria can then die, multiply on the surface (colonize the surface), or damage the person's cells and body parts (start an infection). No infection occurs in many cases, meaning the "infection" did not spread to the person even though the "bacteria" did spread to him. ...Read more

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Are bacterial infections harmful and are they contagious?

Are bacterial infections harmful and are they contagious?

Yes/yes: We often have bacteria in/on our bodies in harmony.The process is labeled colonization and can be useful. You clot your blood with the help of gut bacteria's effect on vitamins. We usually reserve the term infection to note a harmful process. Bacteria are acquired from the environment, whether that be from persons,animals or objects where they live.The degree of contagiousness varies. ...Read more

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Could a bacterial infection in my sinuses be contagious?

Could a bacterial infection in my sinuses be contagious?

Not really: It's hard to pass a bacterial sinus infection as it is not airborne like a viral infection. However that being said, i would not share saliva or touch people after touching nose. ...Read more

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Is bacterial infection from tattoo contagious?

Bacterial infection: It is not likely that bacterial infection affecting a tattoo is contagious in the sense that it will be passed on to persons in the vicinity. If it is due to staph aureus it can colonize people in direct contact, and they can subsequently become infected if they have breaks in the skin, but this is a far stretch from being "contagious". ...Read more

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What are common bacterial infections?

What are common bacterial infections?

Too many to name: There are many, many bacterial infections. Every part of your body is subject to bacterial infection, and the fact that you are not sick from infections all the time, that fact that you survive at all, is a testament to how miraculous the immune system is. There are bacteria everywhere you go. Some bacteria are likely to cause infection, most are not. We are surrounded, and yet we survive. ...Read more

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What can be used for a bacterial infection?

What can be used for a bacterial infection?

INFECTION: Bacterial infections are treated with antibiotics, locally , oral or parenteral depending on the severity of infection. ...Read more

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What does a bacterial infection come from ?

What does a bacterial infection come from ?

Wrong place ; time: Bacteria are everywher. They protect us from bad bugs by crowding them out or not allowing them to take hold; produce bacteriocidal compounds; help us digest food ; make essential vitamins for us. Unfortunately some bugs are not 'friendly'. If our immune system isnt intact (skin breakdown, chemo, poor nutrition, burns, immune diseases) these bad bacteria overcome our immune system and attack us. ...Read more

Dr. Heidi Fowler
2,029 doctors shared insights

Bacterial Infections (Definition)

Bacteria are tiny organisms that can only be seen with a microscope. When certain bacteria enter the body, they can cause infections that must ...Read more


Bacteria (Definition)

Are omnipresent single celled organisms which are the both the simplest form of life and the original form of life on earth. The are ...Read more