FREQUENCY OF ANTI- Toxocara spp. ANTIBODIES IN INDIVIDUALS ATTENDED BY THE CENTRO DE SALUD FAMILIAR AND ENVIRONMENTAL CONTAMINATION WITH Toxocara canis EGGS IN DOG FECES, IN THE COASTAL NIEBLA TOWN, CHILE.
The frequency of anti-Toxocara spp. antibodies in individuals attended by the Centro de Salud Familiar in the coastal Niebla town, Chile, was related to the host and to environmental factors. IgG anti- Toxocara antibodies were detected with a commercial ELISA kit (SCIMEDX Corporation, USA). Samples with undetermined absorbance values were subjected to an additional ELISA standardized by the Instituto de Salud Pública, Chilean Health Ministry, a commercial ELISA (NOVATEC, Germany), and a commercial Western blot kit (LDBio Diagnostics, France). Hematological exams were performed using an automated blood counter and blood smears. Dog feces were collected from the ground along the main road in Niebla, including rural and urban locations. Ninety (25.4%) of the 355 examined individuals were positive by the ELISA test. The frequency of anti-Toxocara antibodies and the infection risk were significantly higher (p < 0.05) among those individuals ≥ 40 years old with respect to the 20-39 years old group, in individuals from rural locations, those who did not have a safe drinking water supply in the house or who presented blood eosinophilia. The proportion of positive samples of dog feces and the mean number of Toxocara canis eggs/g of feces in urban and rural areas were similar (p > 0.05).
Universidad Austral de Chile, Facultad de Medicina, Instituto de Parasitología, Valdivia, Chile.
Catalina
C
Vargas
Universidad Austral de Chile, Facultad de Medicina, Instituto de Parasitología, Valdivia, Chile.
Patricio
P
Torres
Instituto de Salud Pública de Chile, Departamento Laboratorio Biomédico Nacional y de Referencia, Sección de Parasitología, Santiago, Chile.
María Isabel
MI
Jercic
Universidad Austral de Chile, Facultad de Medicina, Instituto de Medicina, Unidad de Hematología, Valdivia, Chile.
Marta
M
Lobos
Instituto de Salud Pública de Chile, Departamento Laboratorio Biomédico Nacional y de Referencia, Sección de Parasitología, Santiago, Chile.
Alan
A
Oyarce
Universidad Austral de Chile, Facultad de Ciencias Económicas y Administrativas, Instituto e Estadística, Valdivia, Chile.
Juan Carlos
JC
Miranda
Instituto de Salud Pública de Chile, Subdepartamento Vigilancia de Laboratorio, Santiago, Chile.
Salvador
S
Ayala
Vet Parasitol. 1988 Sep;29(2-3):195-234
3059669
Am J Trop Med Hyg. 1976 Nov;25(6):818-23
1008127
Vet Parasitol. 2013 Apr 15;193(4):327-36
23318165
Rev Inst Med Trop Sao Paulo. 1988 Sep-Oct;30(5):379-82
3249904
An Pediatr (Barc). 2003 May;58(5):425-31
12724074
Rev Inst Med Trop Sao Paulo. 2006 Sep-Oct;48(5):251-5
17086311
Am J Trop Med Hyg. 2008 Jul;79(1):93-8
18606770
Bol Chil Parasitol. 1979 Jan-Jun;34(1-2):21-6
540080
Bol Chil Parasitol. 1974 Jan-Mar;29(1-2):18-23
4473135
Rev Inst Med Trop Sao Paulo. 2009 Oct-Dec;51(6):301-8
20209265
Asian Pac J Trop Biomed. 2013 Mar;3(3):211-6
23620840
Bol Chil Parasitol. 1980 Jul-Dec;35(3-4):55-61
7317135
Vet Parasitol. 2013 Apr 15;193(4):365-74
23351972
Parassitologia. 1998 Dec;40(4):473-5
10645561
Turkiye Parazitol Derg. 2007;31(4):288-91
18224618
Mem Inst Oswaldo Cruz. 1990 Jan-Mar;85(1):75-8
2215237
Vet Parasitol. 2008 Aug 17;155(3-4):217-22
18584968
Rev Inst Med Trop Sao Paulo. 2002 Nov-Dec;44(6):303-7
12532212
Am J Epidemiol. 1985 Nov;122(5):890-6
4050776
Rev Chil Pediatr. 1984 Jul-Aug;55(4):244-8
6522681
Ann Trop Med Parasitol. 2010 Jan;104(1):3-23
20149289
Rev Med Chil. 1985 Jan;113(1):18-21
4081379
Rev Inst Med Trop Sao Paulo. 2008 Sep-Oct;50(5):273-8
18949344
Rev Med Chil. 2001 Jul;129(7):780-5
11552447
Rev Chilena Infectol. 2011 Oct;28(5):431-4
22051620
Mem Inst Oswaldo Cruz. 2006 Jun;101(4):397-400
16951810
Int J Parasitol. 2013 Nov;43(12-13):999-1008
23954435
Bol Chil Parasitol. 1995 Jul-Dec;50(3-4):57-66
8762668
Vet Parasitol. 2013 Apr 15;193(4):398-403
23305972
Rev Inst Med Trop Sao Paulo. 2009 Mar-Apr;51(2):67-71
19390733
Vet Parasitol. 2013 Apr 15;193(4):342-52
23290279