Table 2 Etiologic agents among patients with acute bloody diarrhoea in selected hospitals in Kilifi and Nairobi Counties
From: Enteric pathogens and factors associated with acute bloody diarrhoea, Kenya
Lab Method | Kilifi | Nairobi | Total n (%) | |||
|---|---|---|---|---|---|---|
1. Direct Microscopy and concentration | Case N = 174 n (%) | Control N = 88 n (%) | Case N = 110 n (%) | Control N = 26 n (%) | Case N = 284 n (%) | Control N = 114 n (%) |
 Trophozoites (n = 398) | ||||||
   Entamoeba histolytica | 8 (4.6) | 0 (0) | 21 (19.1) | 1 (3.8) | 29 (10.2) | 1 (0.8) |
   Giardia lamblia | 0 (0) | 0 (0) | 4 (3.6) | 1 (3.8) | 4 (1.4) | 1 (0.8) |
   Trichomonas hominis | 1 (0.6) | 0 (0) | 1 (0.9) | 0 (0) | 2 (0.7) | 0 (0) |
   E. histolytica & G. lamblia | 0 (0) | 0 (0) | 2 (1.8) | 0 (0) | 2 (0.7) | 0 (0) |
 Cysts (n = 398) | ||||||
   Entamoeba histolytica | 25 (14.4) | 1 (1.1) | 14 (12.7) | 1 (3.8) | 39 (13.7) | 2 (1.7) |
   E. coli | 6 (3.4) | 3 (3.4) | 1 (0.9) | 0 (0) | 7 (2.5) | 3 (2.6) |
   Giardia lamblia | 0 (0) | 0 (0) | 4 (3.6) | 2 (7.7) | 4 (1.4) | 2 (1.7) |
   G. lamblia & E. histolytica | 0 (0) | 0 (0) | 1 (0.9) | 0 (0) | 1 (0.4) | 0 (0) |
 Ova (n = 398) | ||||||
   Trichuris trichuria | 0 (0) | 0 (0 | 0 (0) | 1 (3.8) | 0 (0) | 1 (0.8) |
   Ascaris lumbricoides | 0 (0) | 0 (0) | 1 (0.9) | 1 (3.8) | 1 (0.4) | 1 (0.8) |
2. Stool culture | ||||||
   Shigella | 33 (20) | 0 (0) | 33 (0.3) | 1 (3.8) | 67 (23.6) | 1 (0.8) |
   E. coli | 1 (0.6) | 0 (0) | 8 (7.2) | 0 (0) | 9 (3.2) | 0 (0) |
   Salmonella spp | 1 (0.6) | 0 (0) | 2 (1.8) | 0 (0) | 3 (1.1) | 0 (0) |
   Yersinia enterocolitica | 0 (0) | 0 (0) | 1 (0.9) | 0 (0) | 1 (0.35) | 0 (0) |