Modeling shifts in microbial populations associated with health or disease

Article Abstract:

An in vitro model is described for evaluating the bacterial population shifts associated with the onset of gingivitis, first in a dual-species system and then with a more complex microcosm model, by changing environmental parameters. The model has provided an appropriate system for understanding microbial population shifts associated with gingivitis and for the testing of antimicrobial agents.

Causes of, Bacterial infections, Microbial populations, Gingivitis, Gum diseases

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Tick-borne rickettsial pathogens in ticks and small mammals in Korea

Article Abstract:

Ticks comprising five species from the 'Hemaphysalis' spp. and 'Ixodes' spp. genera were screened through molecular techniques in the course of an investigation into the prevalence of tick-borne infectious agents in ticks in the Republic of Korea (ROK). A high rate of infection with 'Ehrlichia' and 'Anaplasma' sp. pathogens was demonstrated.

Genetic aspects, Ticks, Acarids

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Mass outbreak of food poisoning disease caused by small amounts of staphylococcal enterotoxins A and H

Article Abstract:

A demonstration revealing that food poisoning in Osaka in 2000 was due to small amounts of staphylococcal enterotoxin A (SEA) in reconstituted milk is presented. The results suggested that SEH is also present in the raw material of reconstituted milk, indicating that the food poisoning is caused by multiple staphylococcal enterotoxins.

Japan, Food poisoning, Staphylococcal infections

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