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Type Journal Article - The American journal of tropical medicine and hygiene
Title A cross-sectional study of Taenia solium in a multiple taeniid-endemic region reveals competition may be protective
Volume 87
Issue 2
Publication (Day/Month/Year) 2012
Page numbers 281-291
URL http://www.ajtmh.org/content/87/2/281.full
We conducted cross-sectional surveys for taeniasis and cysticercosis in humans, pigs, and dogs in four northern provinces of Laos. Human cysticercosis and taeniasis prevalence was 2.2% (95% confidence interval [CI] = 1.4–3.0%) and 8.4% (95% CI = 6.9–9.9%), respectively. Eating uncooked beef, being male, province of residence, age, and ethnicity were significant risk factors for taeniasis and only province of residence was a significant risk factor for cystiercosis. Thirty-five human tapeworms were recovered during the survey and 33 (94.3%) and 2 (5.7%) were identified as Taenia saginata and T. solium, respectively. Maximum-likelihood adjusted prevalence of T. solium and T. hydatigena in pigs was 4.2% (95% CI = 0.5–7.9%) and 55.9% (95% CI = 47.5–64.3%), respectively, and T. hydatigena taeniasis in dogs was 4.8% (95% CI = 0.0–11.3%). Taenia hydatigena and T. saginata were the most prevalent taeniids in the respective pig and human populations and together may suppress T. solium transmission.

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