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Doctor insights on: Common Bacterial Infections

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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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Dr. Suzanne Galli
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?

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 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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Can antibiotics cause secondary bacterial infections?

Can antibiotics cause secondary bacterial infections?

Complex answer: Antibiotics have a range of bacteria that they can kill; others outside that range are not so affected; some can become resistant to the antibiotic. If inappropriate ab is used, or taken wrong, e.g. Not as long as rx'd, can lead to more infection, with resistant germ. Bigger problem is overgrowth of a bacteria in gut (c. Difficile) during or after ab use-causes toxin and diarrhea; can be serious. ...Read more

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Is candidiasis a common secondary infection of bacterial pneumonia?

Is candidiasis a common secondary infection of bacterial pneumonia?

Yes: Oral candidiasis (thrush), or vaginosis is commonly seen in people treated with antibiotics. Both usually resolve with local treatment. Systemic candidiasis does occur in patients recovering from severe sepsis, but is not "common" outside the ICU except in the immune compromised. ...Read more

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Can bacterial infections cause cancer?

Can bacterial infections cause cancer?

Not directly: Several pathogenic bacteria known to establish persistent infections, can promote or initiate abnormal cell growth by evading the immune system and creating an environment that can result in cancer (chronic inflammation and production of carcinogenic bacterial metabolites). Helicobacter pylori is a species of bacteria that causes ulcers. If left untreated, this can lead to stomach cancer. ...Read more

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What are common bacterial infections in newborns?

What are common bacterial infections in newborns?

See below: Streptococcus agalactiae, aka, group b strep., escherichia coli, and staphylococcus aureus are major culprits. They are responsible for neonatal sepsis (blood poisoning), meningitis, pneumonia, uti, and bone and joint infection. ...Read more

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What causes bacterial infections?

What causes bacterial infections?

Any contaminated: Bacteria is present everywhere and some are harmful. Some are transmitted from other people and others from having been in contact with a contaminated object, soil. Or water. The most worrisome type is MRSA often acquired from a hospital stay. ...Read more

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Can bacterial infections cause ulcers?

Can bacterial infections cause ulcers?

Yes: A bacteria called helicobacter pylori is the most common cause of ulcers. The bacteria can be treated by antibiotics. It can be detected on endoscopy or stool or breath tests. Ulcers can also be caused by too much Aspirin or antinflammatory medications. ...Read more

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Could leukocytosis cause viral and bacterial infections?

The other way around: Leukocytosis is an abnormally high number of white blood cells in the blood, as measured on a blood test. Both viral and bacterial infections can sometimes cause high numbers of white blood cells (wbc's) or low numbers of wbc's (leukopenia). Unusual leukocytosis, not caused by an infection, can be due to a bone marrow problem such as an early stage of leukemia. A doctor can further evaluate. ...Read more

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Can bacterial infections be cause stds?

Can bacterial infections be cause stds?

Yes : Sexually transmitted diseases like gonorrhea and chlamydia can be caused by bacteria. Others like hiv, hpv and herpes can be caused by a virus. Trichomoniasis is caused by a parasite. ...Read more

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Is candidiasis a common secondary infection of viral pneumonia?

Is candidiasis a common secondary infection of viral pneumonia?

Less than: Staph infections are much more common than candida following a viral pneumonia, but certainly they can occur. Generally, overgrowth of candida that is local (thrush or vaginosis) can occur in any patient. Systemic candidiasis or candidal pneumonia is seen, but usually only in the immune compromised or severely ill patient. ...Read more

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How common are secondary bacterial infections or sepsis with a mono infection?

Not quantified: Secondary bacterial infections are common enough to make most of the lists of complications of ebv that leads to infectious mononucleosis, but i could not find that a case rate had been published at this time (i.e. A percentage of cases that develop secondary infections). The illness does cause relative immune compromise through splenic inflammation and neutropenia in some cases. ...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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Can bacterial infection cause encephalitis?

Yes but likely viral: Encephalitis, inflammation of the brain, can be caused by viruses, bacteria, fungi, parasites, unknown causes, etc... Patients with identifiable causes usually have viral infections. Herpes types 1 & 2, epstein barr virus, varicella (chicken pox, shingles) virus, polio virus, coxsackie (hand-foot-mouth) virus, or mosquito-borne viruses can cause encephalitis. ...Read more

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Are yeast infections contagious?

Are yeast infections contagious?

Yes: Yeast infections are not considered a sexually transmitted disease. But partners do the potential to infect each other. ...Read more

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Could bacterial infections cause missing periods?

Could bacterial infections cause missing periods?

Significant illness : To include bacterial infections could cause a delay or cause you to miss a period. ...Read more

Dr. Heidi Fowler
2,037 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