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The bacterial family Escherichia coli is extensive and ubiquitous-its many strains live in the gastrointestinal systems of nearly all animals.
Traditional classification systems view bacteria according to their physical (morphologic) characteristics because these are the traits perceptible with the use of a microscope, the first tool available for viewing microbes. Pneumonia is an acute or chronic inflammation of lung tissue, which affects the alveoli and lung structure (lung tissue).
Opportunistic pneumonia : affects people with weakened immune systems (people with AIDS, chemotherapy). The bedridden pneumonia : bedridden patients with heart failure, this form of pneumonia is due to a constant bed rest and poor ventilation of the lungs. And possibly antipyretics, mucolytics or cough suppressants and inhalations of substances moderately dilating the airways may be useful. The evolution of the disease is highly dependent on the patient’s general condition and the pathogen. After recovery from pneumonia, patients often feel even slaughtered for several weeks and tend to have fits of coughing.
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Since there are many kinds of organisms causing pneumonia, the way in which they are transmitted and how contagious they are varies according to the specific organism. Chest pain has a variety of noncardiac and cardiac causes, some of which can be very serious. What kinds of tests or exams led to a diagnosis of pneumonia in you, a friend, or relative? Listeriosis - an illness that results from INFECTION with the bacterium Listeria monocytogenes. Symptoms of listeriosis are often fairly severe and many people who develop the illness require hospitalization for treatment.
Treatment is antibiotic therapy, intravenous when symptoms are serious and oral when symptoms are moderate. Bacteria are the most ancient and primitive life forms known, with fossils dating back more than 3 billion years. Most pathogenic bacteria exist in the natural environment, they are harmful to human health, and the IMMUNE SYSTEM establishes mechanisms to stop, contain, or attack them should they enter the body. These characteristics provide basic information about the particular bacterial family that is important to doctors when choosing antibiotic medications to treat bacterial infections. Bacteria called staphylococcus and streptococcus are responsible for this type of infection.

Tuberculosis, Mycoplasma, and viral pneumonias can be more easily transmitted from person to person but may manifest in different ways once transmitted, sometimes more severe, and others less so. Listeriosis most often occurs as a foodborne illness and has the potential to cause serious symptoms.
The diagnostic path includes BLOOD cultures and, when neurologic symptoms are present, LUMBAR PUNCTURE to examine and culture the spinal fluid.
A bacterium’s structure is very simple, consisting of a rigid cell wall that supports and contains the cytoplasm, fragments of RNA, and a single strand of DNA within a nonencapsulated (unbordered) nucleus. Bifidobacterium bifidum, Lactobacillus acidophilus, and Saccaromyces boulardii are some of the more abundant bacterial families that reside in the small intestine.
Bacteria can cause infection and illness by destroying the cells they invade or by releasing toxins. Methods made available through advances in molecular medicine during the latter years of the 20th century, such as ribosomal analysis and DNA sequencing, allow improved understanding of how bacteria function both to support health and to cause illness. The disease proceeds through stages -- In primary syphilis, a chancre -- an open sore that's usually painless -- appears, most commonly on the genitals, usually 10-90 days after exposure. Some cases of pneumonia are contracted by breathing in small droplets that contain the organisms that can cause pneumonia.
Some pregnant women can harbor Listeria monocytogenes bacteria without becoming ill, though pass the infection to their babies. Though bacteria are capable of independent existence, most require a symbiotic relationship with a host organism.
However, when normal flora bacteria are able to establish themselves in tissues other than their natural habitat or their numbers become abundant, they cause INFECTION.
The toxin this strain releases can destroy red BLOOD cells in such volume that the KIDNEYS fail, a condition called HEMOLYTIC UREMIC SYNDROME. In secondary syphilis, a skin rash appears, on any part of the body, including palms of hands & soles of feet. Listeriosis can cause STILLBIRTH (fetal death) and serious neurologic problems in newborns after birth.
The bacteria provide needed functions for the host in exchange for NUTRIENTS and safe haven.
Escherichia coli, for example, are abundant normal flora in the COLON, where they work to prepare the residue of digestion for elimination from the body. In tertiary syphilis, the disease spreads to internal organs, where it can do serious damage. The most common sources of listeriosis are unpasteurized milk and cheeses and processed foods that become contaminated after processing, such as lunch meats served in delis and restaurants.

Health experts caution pregnant women (and other people at increased risk for listeriosis) to eat lunch meats and hot dogs only that are thoroughly reheated, to eat only pasteurized cheeses, to drink only pasteurized milk, and to wash all vegetables and fruits before eating them including lettuce) as methods for reducing their exposure to Listeria monocytogenes infection. Many factors may play a role, such as the immune status of the infected person and the volume or extent of organisms in the exposure. In other cases, pneumonia is caused when bacteria or viruses that are normally present in the mouth, throat, or nose inadvertently enter the lung. It is possible, however, for someone to become contaminated with these organisms, say, in their mouths. At a later date, they may aspirate the bacteria into the lungs, and if conditions are right they may develop pneumonia.
Some organisms can contaminate an object and may contaminate their hands if picked up by another. This explains why so many health professionals advise frequent hand-washing, especially around patients with pneumonia. One organism has become incredibly prominent throughout the United States by this form of contamination. Staph aureus can cause very damaging forms of pneumonia, not to mention infections of other parts of the body.
Since it is resistant to methicillin, it often requires more advanced types of antibiotics, many times given intravenously.During sleep, it is quite common for people to aspirate secretions from the mouth, throat, or nose.
Normally, the body's reflex response (coughing back up the secretions) and their immune system will prevent the aspirated organisms from causing pneumonia. However, if a person is in a weakened condition from another illness, a severe pneumonia can develop. People with recent viral infections, lung disease, heart disease, and swallowing problems, as well as alcoholics, drug users, and those who have suffered a stroke or seizure are at higher risk for developing pneumonia than the general population.
These factors, along with some of the negative side effects of medications, increase the risk for pneumonia in the elderly.Once organisms enter the lungs, they usually settle in the air sacs and passages of the lung where they rapidly grow in number. In some instances, therapy is observed by physicians to confirm that the proper amount and duration of therapy has been completed.

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