Bacteria disease producing

The bacteria which find their way into milk are either pathogenic or non-pathogenic bacteria. Disease producing bacteria which may come from the dairy cow are mainly those which cause tuberculosis, mastitis, and organisms which cause intestinal disturbances. Other disease producing microorganisms which may find their way into milk but do not come from the cow axe those which cause typhoid fever, diphtheria, scarlet fever, smallpox, etc. 

Although bacteria are associated with the production of disease, only a few species are disease-producing or pathogenic. 

The biological contamination and the hardness of underground water are the two very serious problems of water. Dissolved salts deteriorate water quality and may cause diseases related to joints and bones, while infected water may cause many water-borne diseases such as cholera, dysentery, typhoid etc. Ultrasound may disinfect the potable water by blasting off micro organisms such as zooplanktons, phytoplanktons, pathogenic bacteria and produce germ-free water in few minutes of... 

Some bacteria measure as large as 80 p in length others as small as 0.2 ix. However, the majority of the commonly encountered bacteria, including the disease producers, measure about 0.5 n in diameter for the spherical cells and 0.5 by 2 to 3 p for the rod forms. Bacteria producing spores are generally larger than the nonspore-producing species. The sizes of some common species in dried and stained smears are as follows Escherichia coli, 0.5 by 1 to 3... 

Increasing the coverage of antimicrobial therapy is generally necessary in mixed infections where multiple organisms are likely to be present, such as intraabdominal and female pelvic infections in which a variety of aerobic and anaerobic bacteria may produce disease. Another clinical situation in which increased spectrum of activity is desirable is with nosocomial infection. 

Pathogen Biological agents that are disease-producing microorganisms, such as bacteria, mycoplasma, rickettsia, fungi, or viruses. 

Group II includes bacteria that produce toxins responsible for the course of disease during gastrointestinal invasion. Disease symptoms are the result of cell destruction caused by extracellular toxins and by elements present in the cell wall, e.g., fimbriae. Such toxins are not... 

Disease syndromes caused by ingestion of endotoxin or exotoxin from food, by bacteria that produce poisonous substances in a patient s gastrointestinal system, and by xenobiotics present in food products, are a major challenge for medical personnel. 

Among cysteine proteases of bacteria is a papainlike enzyme from Clostridium histolyticum with a specificity similar to that of trypsin 338 Tire anaerobic Porphyromonas gingivalis, which is implicated in perio-dental disease, produces both arginine- and lysine-specific cysteine proteases designated gingipains.339 3393 Some virally encoded cysteine proteases, including one from the polio virus, have trypsin-like sequences with the serine of the catalytic triad replaced by cysteine.340 341 A human adenovirus protease also has a Cys His Glu triad but a totally different protein fold.342... 

Bacteria are dependent upon the proper temperature for life and reproduction and the various species of bacteria may differ widely in their temperature requirements. Most of the disease-producing (pathogenic) bacteria thrive best at body temperatures others may live and multiply in much cooler temperatures while still others live in hot springs. Freezing, as a rule, does not destroy bacteria, but prevents Uieir reproduction. 

For example, the use of pathogens is an important part of the pest control program for Japanese beetles. Japanese beetles are subject to attack by two naturally occurring species of bacteria which cause the fatal milky disease. Preparations containing spores of the contagious bacteria are produced commercially and released in infested areas. 

In all clostridial diseases, pathogenesis is attributable to potent exotoxins released by the organism. C. perfringens strains produce numerous toxins over 20 have been described scientifically. For toxicological identification, C. perfringens strains have been divided into five types (A-E) based on the production of four main toxins (alpha, beta, epsilon, and iota), which combine with other toxic substances created by the bacteria to produce 25 different diseases. 

Germs are disease-producing microorganisms, microbes, or pathogenic bacterium. The term includes bacteria, rickettsiae, viruses, and fungi. 

Bacteria are widely distributed in all surroundings unless special precautions are taken to eliminate or partially exclude them. Bacteria can be pathogenic (disease-producing organisms), non-pathogenic or commensals (i.e. bacteria which occur naturally on or in the body without doing any obvious harm). Some bacteria may produce dormant forms of spores which are very resistant to heat and disinfectants, hence are more difficult to destroy. 

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