Re-examination of Rattus norvegicus as an animal model for Aeromonas-associated enteritis in man.

We have developed an oral feeding model for Aeromonas hydrophila enteritis using Rattus norvegicus with clindamycin pretreatment. All animals in the clindamycin group developed a self-limited, loose stool by day four of feeding. Intestinal examination revealed evidence of enteritis.

Assessment of serological assays for the diagnosis of HIV-1 infections.

Many serologic techniques are available for the detection of HIV-1 infection, but their diagnostic performances have been reported to vary depending on the testing situations. We evaluated eight different serologic assays for detecting HIV-1 antibody in sera from suspected high risk groups in North and East Africa. These included: one ELISA bead assay, three indirect ELISAs, two competitive ELISA assays, one gelatin agglutination assay and a recombinant dot-blot assay.

Potato-Like Odor of Retail Beef Cuts Associated with Species of Pseudomonas.

Retail cuts of beef and hamburger packages from a North Dakota meat processor were examined due to consumer complaints of a strong potato-like or musty odor associated with the meat. Examination for total numbers of aerobic bacteria on plate count agar and for gram-negative psychrotrophic bacteria on crystal violet tetrazolium agar revealed numbers in excess of 10 CFU/g. Numbers of coliform bacteria on violet red bile agar were in excess of 10 CFU/g.