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Prevalence study of yaws in the Democratic Republic of Congo using the lot quality assurance sampling method.

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dc.contributor Epicentre, Paris, France. sgerstl@aol.com
dc.creator Gerstl, S
dc.creator Kiwila, G
dc.creator Dhorda, M
dc.creator Lonlas, S
dc.creator Myatt, M
dc.creator Ilunga, B K
dc.creator Lemasson, D
dc.creator Szumilin, E
dc.creator Guerin, P J
dc.creator Ferradini, L
dc.date 2009-07-22
dc.date.accessioned 2017-01-31T07:14:58Z
dc.date.available 2017-01-31T07:14:58Z
dc.identifier Prevalence study of yaws in the Democratic Republic of Congo using the lot quality assurance sampling method. 2009, 4 (7):e6338 PLoS ONE
dc.identifier 1932-6203
dc.identifier 19623266
dc.identifier 10.1371/journal.pone.0006338
dc.identifier http://hdl.handle.net/10144/77273
dc.identifier http://fieldresearch.msf.org/msf/handle/10144/77273
dc.identifier PloS One
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10144/77273
dc.description BACKGROUND: Until the 1970s the prevalence of non-venereal trepanomatosis, including yaws, was greatly reduced after worldwide mass treatment. In 2005, cases were again reported in the Democratic Republic of the Congo. We carried out a survey to estimate the village-level prevalence of yaws in the region of Equator in the north of the country in order to define appropriate strategies to effectively treat the affected population. METHODOLOGY/PRINCIPAL FINDINGS: We designed a community-based survey using the Lot Quality Assurance Sampling method to classify the prevalence of active yaws in 14 groups of villages (lots). The classification into high, moderate, or low yaws prevalence corresponded to World Health Organization prevalence thresholds for identifying appropriate operational treatment strategies. Active yaws cases were defined by suggestive clinical signs and positive rapid plasma reagin and Treponema pallidum hemagglutination serological tests. The overall prevalence in the study area was 4.7% (95% confidence interval: 3.4-6.0). Two of 14 lots had high prevalence (>10%), three moderate prevalence (5-10%) and nine low prevalence (<5%.). CONCLUSIONS/SIGNIFICANCE: Although yaws is no longer a World Health Organization priority disease, the presence of yaws in a region where it was supposed to be eradicated demonstrates the importance of continued surveillance and control efforts. Yaws should remain a public health priority in countries where previously it was known to be endemic. The integration of sensitive surveillance systems together with free access to effective treatment is recommended. As a consequence of our study results, more than 16,000 people received free treatment against yaws.
dc.language en
dc.rights Published by Public Library of Science, [url]http://www.plosone.org/[/url] Archived on this site by Open Access permission
dc.title Prevalence study of yaws in the Democratic Republic of Congo using the lot quality assurance sampling method.


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