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Objective  Increase in awareness of the health benefits of vegetables has resulted in an increase in consumption. Many vegetables are consumed raw to retain the natural taste and heat labile nutrients. The safety of raw vegetables is a great concern. We investigated the bacteriological and parasitological quality of salad vegetables sold in three major markets in Fako Division Cameroon, the hygiene and preservation practices of vendors and determined the antimicrobial sensitivity of bacterial isolates, to provide data that could be used to improve food safety and safeguard public health.    Results  Bacterial contamination was high. Mean aerobic bacteria counts ranged from 2.5 × 10 6  to 15 × 10 6  cfu/g, total coliform counts from 4 to >  2400/g and fecal coliforms < 3 to 1100/g. Six bacterial species were isolated among which  Staphylococcus aureus  (35.4%) predominated while  Serratia marcescens  (8.5%) was the least. Bacteria showed high resistance to erythromycin (87.6%). Ten parasitic organisms were detected.  Balantidium coli  (25.6%) and  Entamoeba  spp. (21.7%) predominated. Contamination was highest in lettuce and lowest in green pepper. Hygiene and vegetable preservation practices of vendors were poor and could aggravate contamination. Contamination of fresh salad vegetables with pathogenic bacteria and parasites could be a food safety concern in study area.    Electronic supplementary material  The online version of this article (10.1186/s13104-018-3175-2) contains supplementary material, which is available to authorized users.

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Bacterial and parasitic contaminants of salad vegetables sold in markets in Fako Division, Cameroon and evaluation of hygiene and handling practices of vendors