Seroprevalence of Toxocara canis antibodies among Orang Asli (aborigines) in Peninsular Malaysia.
An enzyme-linked immunosorbent assay using excretory-secretory antigens of the second stage larvae maintained in vitro was used to determine the seroprevalence of Toxocara antibodies in Orang Asli (aborigines) of Peninsular Malaysia. The mean + 3 SD optical density of 30 healthy subjects was used as the cut-off point. Overall prevalence was found to be 31.9%. No significant relationship was found between positive rates with sex and age groups, though children between 0 to 9 years recorded the highest positive rates. Eosinophil counts were found to be closely related to the proportion of positivity to toxocaral infection and mean optical densities. There was some degree of cross-reaction with Trichuris trichuria positive sera.
Hakim
S L
SL
Institute for Medical Research, Kuala Lumpur, Malaysia.
Mak
J W
JW
Lam
P L
PL
Nazma
S
S
Normaznah
Y
Y
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000818:Animals; D000909:Antibodies, Helminth / Q000097:blood*; D002648:Child; D002675:Child, Preschool; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods; D004804:Eosinophils / Q000166:cytology; D005260:Female; D006801:Humans; D007223:Infant; D007816:Larva Migrans, Visceral / Q000097:blood / Q000453:epidemiology / Q000276:immunology; D007958:Leukocyte Count; D008296:Malaysia / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D044469:Racial Groups; D016036:Seroepidemiologic Studies; D012737:Sex Factors; D017166:Toxocara canis / Q000276:immunology*
D000909:Antibodies, Helminth