Identifying residual transmission of lymphatic filariasis after mass drug administration: Comparing school-based versus community-based surveillance - American Samoa, 2016

PLoS Neglected Tropical Diseases
Meru SheelColleen L Lau

Abstract

Under the Global Programme to Eliminate Lymphatic Filariasis (LF), American Samoa conducted seven rounds of mass drug administration (MDA) from 2000-2006. The World Health Organization recommends systematic post-MDA surveillance using Transmission Assessment Surveys (TAS) for epidemiological assessment of recent LF transmission. We compared the effectiveness of two survey designs for post-MDA surveillance: a school-based survey of children aged 6-7 years, and a community-based survey targeting people aged ≥8 years. In 2016, we conducted a systematic school-based TAS in all elementary schools (N = 29) and a cluster survey in 28 villages on the two main islands of American Samoa. We collected information on demographics and risk factors for infection using electronic questionnaires, and recorded geo-locations of schools and households. Blood samples were collected to test for circulating filarial antigen (CFA) using the Alere Filariasis Test Strip. For those who tested positive, we prepared slides for microscopic examination of microfilaria and provided treatment. Descriptive statistics were performed for questionnaire variables. Data were weighted and adjusted to account for sampling design and sex for both surveys, and for age ...Continue Reading

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Citations

Apr 2, 2020·The American Journal of Tropical Medicine and Hygiene·Abel EigegeFrank O Richards
Dec 5, 2019·Current Drug Targets·Pone Kamdem Boniface, Ferreira Igne Elizabeth
Nov 2, 2020·International Journal of Infectious Diseases : IJID : Official Publication of the International Society for Infectious Diseases·Paul S WeissFrank O Richards
Nov 10, 2020·International Journal for Parasitology·Shannon M HedtkeWarwick N Grant
May 1, 2021·Tropical Medicine and Infectious Disease·Patricia M GravesColleen L Lau
Jun 4, 2021·Research and Reports in Tropical Medicine·Thuy-Huong Ta-TangJosé M Rubio
Jul 27, 2021·Antimicrobial Agents and Chemotherapy·Veenu BalaDaryl J Murry

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Methods Mentioned

BETA
MDA

Software Mentioned

Stata13
ArcGIS
Survey Sample Builder
Stata
LINKS
Excel

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