Causative microorganisms

Various chemical, physical and environmental factors, noted above, will determine the types of microorganism that can be isolated from different synthetic polymer dispersions and there are a number of literature summaries of organisms shown to be major contaminants of a range of these products (Table 8). 

Furthermore, collaborative testing was carried out by participants in the Polymer Dispersion Group of the International Biodeterioration Research Group (IBRG) in which the viability in polymer dispersions of 175 microbial species was evaluated (Gillatt, 1995) (Table 9). Sixteen representative organisms were selected from 

TaHe 9 Polymer dispersion microorganisms, IBRG study 

Pseudomonas 30 12 were Pseudomonas aeruginosa 6 were Pseudomonas putida 5 were Pseudomonas ftuorescens 5 were Pseudomonas stutzeri 

Proteus 9 6 were Proteus vulgaris 2 were Proteus morganii 

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Toxin A substance produced in some cases by disease-causing microorganisms, which is toxic to other living cells. 

Chlorinated water. The oxidizing power of chlorine-containing chemicals keeps swimming pool watar free of disease-causing microorganisms. 

Turbidity Below 5 nephelolometric turbidity units (NTU) Association with disease-causing microorganisms such as viruses, parasites, bacteria... 

Bad appearance. Turbidity is caused by suspended matter, which may contain disease-causing microorganisms. Discoloration that leaves stains can be caused by dissolved or colloidal iron, tannin, or humic acid from decaying vegetation, and excessive salt content. 

Causative microorganism for yeast infections, such as thrush... 

Conjugates, in which the disease-causing microorganism is coated with toxoid from an unrelated microorganism... 

There are certain infections which, due to the relative inaccessibility of the causative microorganisms to antimicrobial agents, invariably require a prolonged duration (3-5 weeks, rather than 5-8 days) of therapy. They include prostatitis, osteomyelitis and skin infections in dogs, and Khodococcus equi pneumonia in foals (6-16 weeks of age). In the treatment of these infections, preference should be given to the use of orally effective antimicrobial agents. 

Pulmonary dysfunction usually precedes dysfunction in other organs, and it may even initiate the development of SIRS with resulting MODS. In sepsis caused by S. aureus, pulmonary involvement was reported in 82% of the patients. Overall mortality rate ranges from 19% to 90% depending on the causative microorganism. ... 

One especially exciting avenue is the potential for scientists to make from scratch the various sugars that reside on the surfaces of bacteria and viruses. The ability to mimic such sugars will grant scientists the capacity to design new vaccines to control these disease-causing microorganisms. 

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