TY - JOUR
T1 - Brucellosis in dairy cattle and goats in northern Ecuador
AU - Poulsen, Keith P.
AU - Hutchins, Frank T.
AU - McNulty, Chase M.
AU - Tremblay, Marlene
AU - Zabala, Carmen
AU - Barragan, Veronica
AU - Lopez, Luis
AU - Trueba, Gabriel
AU - Bethel, Jeffrey W.
PY - 2014/4
Y1 - 2014/4
N2 - The purpose of this study was to conduct a convenience study for brucellosis prevalence in dairy-producing animals in northern Ecuador. In total, 2,561 cows and 301 goats were tested. Cattle sera were tested using the Rose Bengal card antigen test (RBCT), yielding an overall apparent prevalence of 5.5% (95% confidence interval [95% CI] = 4.7- 6.5%) and true prevalence of 7.2% (95% CI = 6.0-8.5%). Prevalence varied by herd size and was highest in larger commercial herds. Polymerase chain reaction was used to test goat milk and lymph nodes, resulting in 9% and 8% positivity, respectively. The RBCTs from goat sera yielded an adjusted true prevalence of 17.8% (95% CI = 6.2-44.2%). Our findings are similar to other overall prevalence estimates for dairy herds but show higher prevalence in commercial herds compared with small groups (less than five animals). We also identify urban milking goats living in metropolitan Quito as a potential source of zoonosis.
AB - The purpose of this study was to conduct a convenience study for brucellosis prevalence in dairy-producing animals in northern Ecuador. In total, 2,561 cows and 301 goats were tested. Cattle sera were tested using the Rose Bengal card antigen test (RBCT), yielding an overall apparent prevalence of 5.5% (95% confidence interval [95% CI] = 4.7- 6.5%) and true prevalence of 7.2% (95% CI = 6.0-8.5%). Prevalence varied by herd size and was highest in larger commercial herds. Polymerase chain reaction was used to test goat milk and lymph nodes, resulting in 9% and 8% positivity, respectively. The RBCTs from goat sera yielded an adjusted true prevalence of 17.8% (95% CI = 6.2-44.2%). Our findings are similar to other overall prevalence estimates for dairy herds but show higher prevalence in commercial herds compared with small groups (less than five animals). We also identify urban milking goats living in metropolitan Quito as a potential source of zoonosis.
UR - http://www.scopus.com/inward/record.url?scp=84898751390&partnerID=8YFLogxK
U2 - 10.4269/ajtmh.13-0362
DO - 10.4269/ajtmh.13-0362
M3 - Artículo
C2 - 24591429
AN - SCOPUS:84898751390
SN - 0002-9637
VL - 90
SP - 712
EP - 715
JO - American Journal of Tropical Medicine and Hygiene
JF - American Journal of Tropical Medicine and Hygiene
IS - 4
ER -
