bacillary dysentery

(redirected from B. anthracis)
Also found in: Dictionary, Thesaurus, Encyclopedia.


pertaining to bacilli or to rodlike structures.
bacillary dysentery the most common and violent form of dysentery, caused by bacteria of the genus Shigella. It is most common in the tropics, the subtropics, and East Asia and can be fatal, especially among children. It can erupt anyplace where sanitation is poor and large groups of people, including carriers of the disease, are crowded together.

The disease is spread through the feces of carriers who have the bacteria in their intestines; such individuals may have diarrhea or dysentery or may seem perfectly well in spite of carrying the disease. Infection may come after eating or drinking from anything contaminated with bacteria from the feces of these carriers. Even touching something contaminated and then touching the mouth can cause infection. Flies also spread the disease.

Attacks of bacillary dysentery are always acute after the incubation period of a few days. Temperature may rise as high as 40°C (104°F), sometimes with symptoms of dehydration, shock, and delirium. Bowel movements may be as many as 30 to 40 a day. Running its normal course, without special medicines, it is usually over within a few weeks from its outset, although an attack in a child may be more serious and last longer.

Ampicillin is the drug of choice for sensitive strains of Shigella in the United States and is usually effective in relieving the symptoms and controlling bacillary dysentery in a day or two.

The greatest threat of dysentery is from deficient fluid volume and electrolyte imbalance, which must be corrected by the intravenous administration of fluids and electrolytes lost in the watery stools.

Although the usual dysenteric illness may last a few weeks if not treated with special medicines, symptoms of intestinal ulceration, diarrhea, and painful spasms in evacuating may in a few cases continue for a longer time.


any of a number of disorders marked by inflammation of the intestine, especially of the colon, with abdominal pain, tenesmus, and frequent stools often containing blood and mucus. The causative agent may be chemical irritants, bacteria, protozoa, viruses, or parasitic worms. adj., adj dysenter´ic. Dysentery is less prevalent today than in years past because of improved sanitary facilities throughout the world; it was formerly a common occurrence in crowded parts of the world and it particularly plagued army camps. It can be dangerous to infants, children, the elderly, and others who are in a weakened condition.

In dysentery, there is an unusually fluid discharge of stool from the bowels, as well as fever, stomach cramps, and spasms of involuntary straining to evacuate, with the passage of little feces. The stool is often mixed with pus and mucus and may be streaked with blood.
amebic dysentery see amebic dysentery.
bacillary dysentery see bacillary dysentery.
viral dysentery a form caused by a virus, occurring in epidemics and marked by acute watery diarrhea. It is common in travelers who have eaten raw salads or fruit, or used contaminated tableware. With proper care, it should subside in 12 to 72 hours.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

bac·il·la·ry dys·en·ter·y

infection with Shigella dysenteriae, S. flexneri, or other organisms.
Farlex Partner Medical Dictionary © Farlex 2012

bac·il·la·ry dys·en·ter·y

(bas'i-lar-ē dis'ĕn-ter'ē)
Infection with Shigella dysenteriae, S. flexneri, or other organisms.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

bacillary dysentery

An acute infection of the bowel, mainly caused by the organism Shigella sonnei , and, in severe cases, featuring diarrhoea, colicky abdominal pain, fever, blood and pus in the stools and dehydration. Many cases are mild.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

bac·il·la·ry dys·en·ter·y

(bas'i-lar-ē dis'ĕn-ter'ē)
Infection with Shigella dysenteriae, S. flexneri, or other organisms.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
freundii and B. anthracis was found to be 37degC while the optimum temperature for the growth of K.
According to the researchers, the viruses can alter the lifestyle of B. anthracis in two principal ways.
We applied this experimental approach to all 25 B. anthracis VNTR loci and eventually selected 6 loci that yielded easily differentiated melting curves and a high capacity for distinguishing different strains.
Past studies of outdoor sites contaminated by naturally occurring B. anthracis haven't suggested that much of the pathogen returns to the air, notes Weis.
The infected cats were possibly exposed to B. anthracis through the ingestion of meat from infected carcasses.
On July 18, the day of the initial identification of B. anthracis, the local Idaho public health district initiated a public health investigation, which revealed the specimen was taken from a dog-bite wound on the face of a male healthcare worker aged 36 years in southern Idaho.
The Sterne strain of B. anthracis (an avirulent veterinary vaccine strain), B.
In test-tube experiments, the enzyme destroyed strains of B. anthracis collected from around the world but left most other bacteria unscathed.
Environmental sampling of the entire trip route was not feasible because the travel route involved several thousand miles over 3 weeks, specific suspected exposure locations were lacking, and recovering B. anthracis from environmental samples (12), particularly soil (13), gives variable results and is inefficient.
* On the basis of initial positive results for B. anthracis in several areas of the house, extensive testing was performed a week later to guide decontamination efforts.
No viable B. anthracis or DNA could be retrieved from the investigation's drug samples.
As a result of this terrorist act, several post offices, mailrooms in government buildings, and private office buildings were contaminated with B. anthracis spores.