TY - JOUR
T1 - Estimating the probability of freedom from bovine brucellosis in the Galapagos Islands
AU - Gioia, G.
AU - Vinueza, R. L.
AU - Cruz, M.
AU - Jay, M.
AU - Corde, Y.
AU - Marsot, M.
AU - Zanella, G.
N1 - Publisher Copyright:
© 2018 Cambridge University Press.
PY - 2019
Y1 - 2019
N2 - Bovine brucellosis is a worldwide zoonotic disease that still burdens several countries in the Mediterranean, Asia, Africa and Latin America. Although the disease is present in Ecuador, the Galapagos Islands seem to be free from the disease based on a survey conducted in 1997 where all tested animals showed negative results. This study aimed at estimating the probability of freedom from brucellosis in this Ecuadorian province in 2014. A survey was implemented on the three main cattle-producing islands of the province: Santa Cruz, Isabela and San Cristóbal. Thirty-three cattle farms and 410 cattle were tested for brucellosis using the Rose Bengal test and indirect ELISA. All animals showed negative results for both tests. Probability of freedom was estimated at 98%, 91% and 88% for Santa Cruz, Isabela and San Cristóbal, respectively, considering a herd-level design seroprevalence of 20% and animal-level design seroprevalence of 15%, and assuming a perfect specificity of the survey. The negative results found in 1997 and present surveys suggest that the Galapagos Islands are free from bovine brucellosis.
AB - Bovine brucellosis is a worldwide zoonotic disease that still burdens several countries in the Mediterranean, Asia, Africa and Latin America. Although the disease is present in Ecuador, the Galapagos Islands seem to be free from the disease based on a survey conducted in 1997 where all tested animals showed negative results. This study aimed at estimating the probability of freedom from brucellosis in this Ecuadorian province in 2014. A survey was implemented on the three main cattle-producing islands of the province: Santa Cruz, Isabela and San Cristóbal. Thirty-three cattle farms and 410 cattle were tested for brucellosis using the Rose Bengal test and indirect ELISA. All animals showed negative results for both tests. Probability of freedom was estimated at 98%, 91% and 88% for Santa Cruz, Isabela and San Cristóbal, respectively, considering a herd-level design seroprevalence of 20% and animal-level design seroprevalence of 15%, and assuming a perfect specificity of the survey. The negative results found in 1997 and present surveys suggest that the Galapagos Islands are free from bovine brucellosis.
KW - Bovine brucellosis
KW - Galapagos Islands
KW - cattle
KW - freedom from infection
UR - http://www.scopus.com/inward/record.url?scp=85053804596&partnerID=8YFLogxK
U2 - 10.1017/S0950268818002534
DO - 10.1017/S0950268818002534
M3 - Artículo
C2 - 30229717
AN - SCOPUS:85053804596
SN - 0950-2688
VL - 147
JO - Epidemiology and Infection
JF - Epidemiology and Infection
M1 - e9
ER -
