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Factors associated with the 18-month cumulative incidence of seroconversion of active infection with Taenia solium cysticercosis : a cohort study among residents of 60 villages in Burkina Faso

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Abstract
Taeniasis/cysticercosis (CC) is an important disease complex with significant burden. This large-scale cohort study aimed at estimating and exploring individual-and village-level factors associated with the cumulative incidences of seroconversion (SC) and seroreversion (SR) of active human CC in three provinces of Burkina Faso. In 60 villages, blood samples were collected and interviews regarding sociodemographic variables and knowledge, attitude, and practices toward the disease complex were conducted at baseline and 18-month follow-up (N = 2,211), with the presence of active CC being determined using the B158/B60 antigen enzyme-linked immunosorbent assay (Ag-ELISA). The 18-month Ag SC and SR were estimated at 3.3% (95% confidence interval [CI]: 2.6; 4.2%) and 35.8% (95% CI: 24.5; 48.5%), respectively. Marked provincial differences were found for the 18-month Ag SC (Boulkiemde: cumulative incidence ratio [CIR]: 2.41 (95% CI: 1.21; 4.78) and Nayala: CIR: 3.28 (95% CI: 1.37; 7.84), compared with Sanguie), while not being significantly associated with other sociodemographic factors. A continued refraining from pork consumption was associated with a lower 18-month Ag SC (CIR: 0.55 [95% CI: 0.28; 1.07]), whereas at the village level, the percentage of households owning pigs was associated with a higher 18-month AgSC(CIR: 1.03 [95% CI: 1.01; 1.05]). In conclusion, this is one of few cohort studies and the first to have enough power to assess possible causal links between individual-and village-level variables and CC in humans. Variables linked to province, pig raising, and pork consumption behaviors were found to cause Ag SC in humans. The latter results further support the importance of adopting a One Health approach to the control of CC.
Keywords
RISK-FACTORS, PREVALENCE, EPIDEMIOLOGY, COMMUNITY, COST

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MLA
Dermauw, Veronique et al. “Factors Associated with the 18-month Cumulative Incidence of Seroconversion of Active Infection with Taenia Solium Cysticercosis : a Cohort Study Among Residents of 60 Villages in Burkina Faso.” AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE 99.4 (2018): 1018–1027. Print.
APA
Dermauw, V., Carabin, H., Ganaba, R., Cissé, A., Tarnagda, Z., Gabriël, S., Dorny, P., et al. (2018). Factors associated with the 18-month cumulative incidence of seroconversion of active infection with Taenia solium cysticercosis : a cohort study among residents of 60 villages in Burkina Faso. AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, 99(4), 1018–1027.
Chicago author-date
Dermauw, Veronique, Hélène Carabin, Rasmané Ganaba, Assana Cissé, Zékiba Tarnagda, Sarah Gabriël, Pierre Dorny, and Athanase Millogo. 2018. “Factors Associated with the 18-month Cumulative Incidence of Seroconversion of Active Infection with Taenia Solium Cysticercosis : a Cohort Study Among Residents of 60 Villages in Burkina Faso.” American Journal of Tropical Medicine and Hygiene 99 (4): 1018–1027.
Chicago author-date (all authors)
Dermauw, Veronique, Hélène Carabin, Rasmané Ganaba, Assana Cissé, Zékiba Tarnagda, Sarah Gabriël, Pierre Dorny, and Athanase Millogo. 2018. “Factors Associated with the 18-month Cumulative Incidence of Seroconversion of Active Infection with Taenia Solium Cysticercosis : a Cohort Study Among Residents of 60 Villages in Burkina Faso.” American Journal of Tropical Medicine and Hygiene 99 (4): 1018–1027.
Vancouver
1.
Dermauw V, Carabin H, Ganaba R, Cissé A, Tarnagda Z, Gabriël S, et al. Factors associated with the 18-month cumulative incidence of seroconversion of active infection with Taenia solium cysticercosis : a cohort study among residents of 60 villages in Burkina Faso. AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE. 2018;99(4):1018–27.
IEEE
[1]
V. Dermauw et al., “Factors associated with the 18-month cumulative incidence of seroconversion of active infection with Taenia solium cysticercosis : a cohort study among residents of 60 villages in Burkina Faso,” AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, vol. 99, no. 4, pp. 1018–1027, 2018.
@article{8592063,
  abstract     = {Taeniasis/cysticercosis (CC) is an important disease complex with significant burden. This large-scale cohort study aimed at estimating and exploring individual-and village-level factors associated with the cumulative incidences of seroconversion (SC) and seroreversion (SR) of active human CC in three provinces of Burkina Faso. In 60 villages, blood samples were collected and interviews regarding sociodemographic variables and knowledge, attitude, and practices toward the disease complex were conducted at baseline and 18-month follow-up (N = 2,211), with the presence of active CC being determined using the B158/B60 antigen enzyme-linked immunosorbent assay (Ag-ELISA). The 18-month Ag SC and SR were estimated at 3.3% (95% confidence interval [CI]: 2.6; 4.2%) and 35.8% (95% CI: 24.5; 48.5%), respectively. Marked provincial differences were found for the 18-month Ag SC (Boulkiemde: cumulative incidence ratio [CIR]: 2.41 (95% CI: 1.21; 4.78) and Nayala: CIR: 3.28 (95% CI: 1.37; 7.84), compared with Sanguie), while not being significantly associated with other sociodemographic factors. A continued refraining from pork consumption was associated with a lower 18-month Ag SC (CIR: 0.55 [95% CI: 0.28; 1.07]), whereas at the village level, the percentage of households owning pigs was associated with a higher 18-month AgSC(CIR: 1.03 [95% CI: 1.01; 1.05]). In conclusion, this is one of few cohort studies and the first to have enough power to assess possible causal links between individual-and village-level variables and CC in humans. Variables linked to province, pig raising, and pork consumption behaviors were found to cause Ag SC in humans. The latter results further support the importance of adopting a One Health approach to the control of CC.},
  author       = {Dermauw, Veronique and Carabin, Hélène and Ganaba, Rasmané and Cissé, Assana and Tarnagda, Zékiba and Gabriël, Sarah and Dorny, Pierre and Millogo, Athanase},
  issn         = {0002-9637},
  journal      = {AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE},
  keywords     = {RISK-FACTORS,PREVALENCE,EPIDEMIOLOGY,COMMUNITY,COST},
  language     = {eng},
  number       = {4},
  pages        = {1018--1027},
  title        = {Factors associated with the 18-month cumulative incidence of seroconversion of active infection with Taenia solium cysticercosis : a cohort study among residents of 60 villages in Burkina Faso},
  url          = {http://dx.doi.org/10.4269/ajtmh.18-0294},
  volume       = {99},
  year         = {2018},
}

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