FAQ - Gram-Negative Bacterial Infections
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Why might an infection by Gram-negative bacteria be more difficult to treat than a Gram-positive bacterial ?

help me pleaseee. im having probs with these bacteria questions. can someone please help me out? i appreciated it alot. The question is:
Why might an infection by Gram-negative bacteria be more difficult to treat than a Gram-positive bacterial infection?

Because the two layers of the cell wall in gram negative cells protect the cytoplasm better than the one layer in gram positive cells.

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List 3 gram negative organisms that cause pulmonary infections?

List 3 gram positive organism that cause pulmonary infections? Thank you

Medically relevant Gram-negative bacilli include a multitude of species. Some of them primarily cause respiratory problems (Hemophilus influenzae, Klebsiella pneumoniae, Legionella pneumophila, Pseudomonas aeruginosa)
g+ Streptococcus pneumoniae, Staphylococcus aureus, Mycoplasma pneumoniae  (+ info)

What does gram positive and negative stain do inside a bacterial cell?

It doesn't do anything inside a bacterial cell. These stains are for determining what type of bacteria they are (gram positive or negative). The reason why they are classified as such is because gram positive and gram negative bacteria have different cell walls. Knowing the structure of their cell walls will help determine which antibiotics should be used in order to destroy them.  (+ info)

I keep getting bacterial infections and keep going back to the doctor for medicine. Any suggestions?

I have recurring bacterial infections. I feel like the medicine I am being given to treat the infection is not strong enough and doesn't completely fight off the bacterial. Has anyone been in this situation before and does anyone know anything that can be done?

Well, generally I can say that if the treatment and diagnosis is right there should be no problem. Do you take antibiotics on right dosages and frequency? If antibacterials are suddenly stopped or minimized, drug resistance may occur thereby decreasing it's effectiveness. If that should happen, a "stronger" type of antibiotic is given OR a combination of drugs to increase potency.  (+ info)

How to Bacterial intoxications differ from Bacterial infections of the digestive system?

Bacterial intoxications differ from bacterial infections of the digestive system in that intoxications :
a. are accompanied by fever
b. are more severe
c. are transmitted via water
d. are treated with antibiotics
e. have a shorter incubation time

E. The toxin acts immediately.  (+ info)

What can be some possible causes for reoccurring bacterial infections?

I have had reoccurring bacterial infections for years now. Just recently my monthly period went away, and my vaginal area was hurting/irritatable. Now I have this discharge, with a slight order and I know that is a sign of some type of bacterial/yeast infection. It seems to come back like 3-4 months after I get the anitbotics.

Does anyone have the answer?

You have an imbalance somewhere. After the antibiotics are over, you need to take probiotics (acidophilus). Health food stores have them. This puts back the friendly bacteria in your body. Cut out the sugary food in your diet, it can spur the growth of yeast infections, they love sugar. You might want to drink natural cranberry juice as well. Good luck.  (+ info)

How would you explain the importance of avoiding bacterial infections to a person with leukemia?

How would you explain to a patient with leukemia, who has a greatly elevated white blood count, the importance of avoiding bacterial infections?

I agree with the others that they should have a low white blood cell count.

However, I would tell them its a matter of life or death, literally. During my leukemia treatment I got an infection while I was neutropenic. I went in to septic shock, was on life support for about two and a half weeks and very nearly almost died.  (+ info)

why are bacterial infections in the bone difficult to treat with antibiotics?

Hip replacement surgeries as well as other bone replacement or bone pinning operations are notorious as a source of bacterial infections that are intractable to antibiotic treatment. In two or three sentences, speculate on why this is the case.

Think about it, and you'll have your answer.

How is an antibiotic going to reach the site of an infection? Through the blood. What kind of blood supply is there to a bone, such as the femoral head (a common site of hip relacement surgeries). What if the single blood supply is interrupted because of a clean break through the femoral head? In a case like that, very little blood is reaching the area, and tissue death can result (avascular necrosis) and nothing can help tissue once it has died. An extreme example, but in each case it would be all about adequate blood supply to the area of a bone infection, or the lack thereof.

Best wishes.  (+ info)

Germs can penetrate the eyes, but bacterial infections in the eye are relatively rare. Why is this?

Germs can penetrate the eyes, but bacterial infections in the eye are relatively rare. Why is this?

Blinking crushes bacteria that try to enter the eye.
Eyelashes act as shields preventing germs from entering the eye.
Tears, which constantly wash over the eye, contain an anti-bacterial enzyme.
The number of bacteria that can actually infect the eye is quite small.

Blinking does not crush bacteria. Bacteria are too small and can slip into the eye even when it's closed.
Eyelashes might shield larger debris from entering the eye but not bacteria. Again... they're too small, and eye infections are usually spread by the fingers anyway.
Tears are probably the best bet to why eye infections are rare. I'm not sure about the anti-bacterial enzyme although I don't doubt this concept, but salinity and the fact that they're constantly flushing and draining the eye's surface probably has something to do with it also.
I'm sure there are a plethora of bacteria that can infect the eye. Our bodies are just built to defend themselves against them since we evolved with these bacteria.  (+ info)

Can doxycycline treat bacterial infections of the eye?

Is doxycycline systemic? Can it treat infections anywhere in the body, including the eyes if one had bacterial conjunctivitis?

Question #1: Ciprofloxacin & trimethoprim-polymyxin are often used. For inclusion conjunctivitis, oral azithromycin, doxycycline or erythromycin are used. Gonococcal conjunctivitis may be treated with an injection of ceftriaxone. And adenoviral onjunctivitis is treated in a another way.

Question #2: Doxy is systemic if taken orally. Naturally, topical doxy is not.

Question #3: Although doxy is a broad-spectrum antibiotic in the tetracycline family, the trend now is toward targeted therapy using narrow-spectrum antibiotics. If you have doxy lying around, discard it. There are more kinds of conjunctivitis than bacterial, so one would need to be diagnosed first. Only bacterial conjunctivitis is treated with an antibiotic.  (+ info)

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