Salmonella has been linked to many food-borne illnesses and epidemics in both humans and animals. This cross-sectional study determined the prevalence, serovars and factors associated with Salmonella contamination of chickens slaughtered in outlets of the informal markets in Gauteng Province, South Africa. A total of 151 chicken carcasses were randomly collected from 47 outlets. Standard bacteriological and molecular methods were used to isolate, identify and determine the serovar of Salmonella isolates. The prevalence of Salmonella in carcass swabs, cloacal swabs and carcass drips was 29.1% (44/151), 27.2% (41/151) and 43.7% (66/151), respectively and the differences were statistically significant (p=0.004). Only five factors (township locations of outlet, throughput, carcass evisceration, location of carcass for sale, and outlet sanitation) of 10 factors investigated for the contamination of carcasses by Salmonella were statistically significantly (P<0.05) associated with the isolation of Salmonella. Of the 268 isolates of Salmonella , 157 (58.6%) were typable using a limited molecular PCR technique and nine serovars were identified. The predominant Salmonella enterica serovars were Bovismorbificans (31.0%), Enteriditis (7.5%), Hadar (6.7%). The five important factors found to be significantly associated with the isolation of Salmonella at these outlets offer invaluable opportunities for the reduction of Salmonella contamination. There is a need for further investigation of the probable causes for the predominant isolation of serovar Bovismorbificans in chicken and its potential implications for human infections in South Africa. It is concluded that chicken purchased from the informal market in Gauteng province can be a source for salmonellosis in humans if improperly cooked prior to consumption.
Prevalence, serovars and factors associated with Salmonella contamination of chicken carcasses sold in outlets of the informal market in Gauteng Province, South Africa
- Views Icon Views
- Share Icon Share
- Search Site
Thelma Mokgophi, Nomakorinte Gcebe, Folorunso Fasina, Kudakhwashe Jambwa, Abiodun Adesiyun; Prevalence, serovars and factors associated with Salmonella contamination of chicken carcasses sold in outlets of the informal market in Gauteng Province, South Africa. J Food Prot doi: https://doi.org/10.4315/JFP-20-416
Download citation file: