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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. Austina Cho
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

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Why do repeated bacterial infections occur?

Why do repeated bacterial infections occur?

Frequent fliers: Repeat infections can occur for many reasons including (but not all inclusive): 1. The infection wasnt completely managed in 1st place (abscess not drained, dead tissue behind, inadequate therapy) 2. The wrong antibiotic chosen 3. Risk that caused 1st infection continues (behavior/immune disorder) 4. Immunity doesnt follow infection (syphilis, rhinovirus) 5. True true unrelated (new infect'n). ...Read more

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Describe the features of a bacterial infection.?

Depends where: Symptoms of bacterial infection very depending on the organ system involved, commonly including fever, pain and feeling under the weather. A urine infection presents with pain and itchiness with urination, a skin infection with redness and boils, a respiratory infection with difficulty breathing. ...Read more

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What are the complications of Bacterial infections?

What are the complications of Bacterial infections?

Depends on location: Bacterial infections may have local complications such as abscess formation and extension of the infection to adjacent structures. They also can cause systemic infection with involvement of other organs. Different complications depend on the location of the infection. These infections should be treated with antibiotics as soon as possible. Sometime surgical drainage is required. ...Read more

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What's your opinion on treating bacterial infections?

Depends:: Severe (meningitis, pneumonia) - no option except antibiotics. Localized abscess - surgical is usually best. Mild ear infection or bronchitis - may wait and see if it resolves without antibiotics. Strep throat - rare complications if untreated. ...Read more

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Bacterial infection from endoscopy?

Bacterial infection from endoscopy?

Highly unlikely: Unless there was penetration of the tube being endoscoped (colon, stomach, small bowel, other) it would be remarkably unusual to acquire infection from these devices. ...Read more

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Can semen give you a bacterial infection?

Infection: If ejaculate or pre-ejaculate carries a bacterial infection (such as an STD) then transmission is possible. However, uninfected semen will not transmit an infection. ...Read more

Dr. Heidi Fowler
2,030 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