Plasmids have been known to play a major role in the dissemination of antibiotics resistance genes in a microbial population. In this background, 148 Proteus species comprising of 97 Proteus mirabilis and 51 Proteus vulgaris were isolated from diabetic wounds. Seventy-six strains had varied multi-drug resistance (MDR) pattern encoded on transferable plasmid gene with a very high frequency (2 x10 -4 to 4 x 10 -2 per donor cell) by conjugation. 34% of the strains lost the antibiotic resistance plasmids marker after sodium dodecyl sulfate (SDS) mediated curing. The rest of the plasmid markers were non transferable. The results indicated that plasmids carry varied dissemination of antibiotics resistance markers to distant recipient cells, indicating clonal transfer among bacterial strains.
A study was conducted to determine the immune status of dogs vaccinated against Canine Parvovirus (CPV) and Canine Distemper Virus (CDV) by a clinic-based immunoblot enzyme-linked immunosorbent assay (ELISA) using a commercially available 120 sample immunocomb® test kit for canine parvo and distemper IgG in Benin City, Nigeria. Out of 120 dogs sampled, 63 (52.5%) were females while 57 (47.5%) were males. 84 (70%) dogs were exotic breeds while 36 (30%) were mongrels. Majority of the dogs (35, 29.17%) were less than one year old and the age range of all dogs sampled was between 9 weeks and 10 years. Analysis of data showed that there was no significant difference (P < 0.05) between sex, breed, age and level of immunity. A non-parametric chi-square contingency analysis of antigens (CPV and CDV) and level of immunity revealed that there was a high significant association (p < 0.001) between CPV and CDV antigens and level of immunity of the vaccinated dogs sampled.
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