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Biomedical subjects

J A Mayo

Publications and source records attributed to J A Mayo.

42 records · Page 3Linked to original sources
PubMedDate not supplied

Neonatal equine herpesvirus type 1 infection on a thoroughbred breeding farm.

Of 17 foals born on a Thoroughbred breeding farm between March and April 1995, infection with equine herpesvirus type 1 (EHV-1) was associated with neonatal morbidity in 5 foals, 3 of which died or were euthanized. Morbidity and mortality were associated with pulmonary inflammation, and EHV-1 was identified in the lungs of the 3 foals that died. All neonatal EHV-1 infections occurred in foals of mares housed in the same pasture and barn. No other clinical manifestations of EHV-1 infection (e.g., abortion, neurologic disease, or respiratory disease) occurred during this outbreak. Three foals were treated with acyclovir (1 died, 2 survived), which may have influenced the clinical outcome in the surviving foals.

Animals↗
PubMedDate not supplied

Bacterial biofilm: a source of contamination in dental air-water syringes.

This study examined the bacteriology of dental air-water syringes, and found that the water delivered by these syringes can be persistently contaminated with bacteria. Flushing of the water line reduced but did not eliminate this contamination. Even after six minutes' flushing, some water samples still contained more than 10(4) viable bacterial cells per milliliter, although coliform counts were less than two per 100 milliliters as measured by a Most Probable Number assay. Sterilization of the tip or the entire syringe did not eliminate this contamination. Scanning electron microscopy revealed bacterial biofilms on the inner wall of the plastic tubing supplying water to the air-water syringe, but not on the air line or on new, unused tubing. Such biofilms probably can be found in any tubing which supplies water to components of dental units. The inoculum for these biofilms comes from ubiquitous environmental aquatic bacteria, some of which can cause disease in compromised patients. Biofilms can be held in check by regular flushing of the water lines with a biocide, and the authors affirm the use of the ADA guidelines for treatment of contaminated dental-unit water lines to control possible cross-infection.

Communicable Disease Control↗