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. 2019 Aug 19;19:1135. doi: 10.1186/s12889-019-7450-5

Table 1.

Distribution and characteristics of studies used in the review

Number of human studies (n = 45) Number of animal studies (n = 9) Number of environmental studies (n = 12)
Region
 Adamawa 1 (2.2%) 2 (22.2%)
 Centre 21 (46.7%) 2 (22.2%)
 Far-north 1 (2.2%)
 Littoral 5 (11.1%) 4 (33.3%)
 North-west 2 (4.4%)
 South-west 7 (15.6%) 3 (33.3%) 5 (41.7%)
 West 8 (17.7%) 2 (22.2%) 3 (25%)
Type of material
 Journal article 45 (100%) 7 (77.8%) 12 (100%)
 Dissertation (Unpublished) 2 (22.2%)
Language
 English 40 (88.9%) 5 (55.6%) 12 (100%)
 French 5 (11.1%) 4 (44.4%)
Study design
 Cross sectional 42 (93.3%) 9 (100%) 12 (100%)
 Longitudinal 2 (6.7%)
Animal and human population study
 Beef cattle 2 (22.2%)
 Poultry: broilers & eggs layers 5 (55.6%)
 Swine 1 (11.1%)
 Shrimps 1 (11.1%)
 Healthy adults 5 (11.1%)
 Patients or cases 36 (80%)
 Health care personnel 4 (8.9%)
Common infection
 Urinary tract infection 29 (64.4%)
 Bloodstream infection 17 (37.8%)
 Gastro-intestinal infection 15 (33.3%)
 Respiratory infection 14 (31.1%)
 Skin problems 6 (13.3%)
 Eye and ear discharge 5 (11.1%)
Samples studied
 Faecal/cloacal swabs/caecum 7 (77.8%)
 Meat or carcass 1 (11.1%)
 Shrimps 1 (11.1%)
 Stool sample 14 (31.1%)
 Urine 26 (57.8%)
 Vaginal swabs 14 (31.1%)
 Blood 12 (26.7%)
 Pus 12 (22.7%)
 Wounds swabs 10 (22.2%)
 Skin 6 (13.3%)
 Nasal swabs 4 (8.9%)
 Medical tools and devices 6 (50%)
 Water 3 (25%)
 uncooked vegetables 1 (8.3%)
 Money (notes and coins) 1 (8.3%)
 Abattoirs drains 1 (8.3%)
Bacteria isolates studied
Escherichia coli 23 (51.1%) 3 (33.3%) 3 (25%)
Salmonella spp. 1 (2.1%) 6 (66.7%) 1 (8.3%)
Klebsiella spp 19 (42.2%) 3 (25%)
Enterococcus spp 7 (15.6%) 1 (11.1%) 2 (16.7%)
Proteus spp 6 (13.3%) 2 (22.2%) 2 (16.7%)
Citrobacter spp 4 (8.9%)
Staphylococcus spp. 18 (40%) 1 (11.1%) 8 (66.7%)
Streptococcus spp 6 (13.3%) 1 (8.3%)
Pseudomonas aeruginosa 11 (24.4%) 4 (33.3%)
Bacillus spp 2 (4.4%) 6 (50%)
Shigella spp 2 (4.4%) 3 (25%)
Vibrio cholerae 1 (2.1%) 1 (11.1%) 3 (25%)