Prevalence and Characteristics of Enteric Pathogens Detected in Diarrhoeic and Non-Diarrhoeic Foals in Trinidad
Table 1
Frequency of detection of enteropathogens in diarrhoeic and nondiarrhoeic foals.
Organism
All foals studied
Diarrhoeic foals
Nondiarrhoeic foals
Number of foalsa tested
Number (%) positive
Number of foals tested
Number (%) positive
Number of foals tested
Number (%) positive
Escherichia coli
160
136 (85.0)
9
9 (100.0)
151
127 (84.1)
Escherichia coli O157
158
0 (0.0)
9
0 (0.0)
146
0 (0.0)
Salmonella spp.
159
7 (4.4)b
9
3 (33.3)
150
4 (2.7)
Clostridium spp.
155
20 (12.9)
7
0 (0.0)
149
20 (13.4)
Rotavirus
145
3 (2.1)
8
0 (0.0)
141
3 (2.1)
Cryptosporidium spp.
145
94 (64.8)
8
2 (25.0)
137
92 (67.2)
Strongyloides westeri
84
30 (35.7)
5
1 (20.0)
79
29 (36.7)
aComprising a total of a maximum of 9 diarrhoeic and 155 nondiarrhoeic foals.
bFour serovars of Salmonella spp. were recovered: S. Anatum (3 isolates), S. Javiana (2 isolates) S. Uganda (1 isolate), and S. Aberdeen (1 isolate).
