| Type of salad vegetable | Microbes isolated | Reference number |
| Lettuce | Escherichia coli O157:H7, Proteus spp., Enterobacter spp., Staphylococcus aureus, Salmonella spp., Klebsiella spp., Listeria monocytogenes, Pseudomonas spp., Acinetobacter spp., Micrococcus spp., Bacillus, yeast, and moulds | [32ā35] |
| Cabbage | Escherichia coli O157:H7, Pseudomonas spp., Erwinia spp., Salmonella spp., Listeria monocytogenes, Staphylococcus, and Enterococcus | [33, 36, 37] |
| Carrot | Escherichia coli O157:H7, Erwinia spp., Staphylococcus aureus, Enterobacter spp., Citrobacter spp., Klebsiella spp., Lactobacillus spp., Pseudomonas spp., Vibrio spp., Proteus spp., Aspergillus spp., Rhizopus spp., and Enterococcus | [33, 34, 36, 38] |
| Cucumber | Escherichia coli O157:H7, Staphylococcus aureus, Enterobacter spp., Klebsiella spp., Lactobacillus spp., Pseudomonas spp., Vibrio spp., Aspergillus spp., and Shigella spp. | [34, 36, 38] |
| Onion | E. coli, Pseudomonas spp., Enterobacter spp., Staphylococcus spp., Streptococcus spp., and Cryptosporidium spp. | [36, 37, 39, 40] |
| Tomatoes | Citrobacter spp., Enterobacter spp., Klebsiella spp., Lactobacillus spp., Pseudomonas spp., Staphylococcus spp., Vibrio spp., Aspergillus spp., Rhizopus spp., Penicillium spp., Shigella spp., Escherichia coli O157:H7, Salmonella spp., Listeria spp., and Enterococcus | [33, 38, 41, 42] |
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