Evidence for the interruption of transmission of lymphatic filariasis among schoolchildren in Trinidad and Tobago

Rawlins, Samuel C.; Siung-Chang, Avril; Baboolal, Shirematee; Chadee, Dave D.

doi:10.1016/j.trstmh.2003.11.006

Cited by 12 publications

(2 citation statements)

References 4 publications

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“…Some evidence is available to suggest that reintroduction of infection into the areas cleared of LF is difficult in Anopheles vector areas [38]. Although the data on inward migration is lacking, in Trinidad, where C. quinquefasciatus was the vector, no reintroduction of LF was observed over a 21-year follow-up study [39], [40]. Thus, migrants may not pose a problem in successful areas where Culex and Anopheles species are the vectors.…”

Section: Migration From Endemic or Non-mda Areas To Areas That Achievmentioning

confidence: 99%

Population Migration: Implications for Lymphatic Filariasis Elimination Programmes

Ramaiah

2013

PLoS Negl Trop Dis

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Human population migration is a common phenomenon in developing countries. Four categories of migration—endemic to nonendemic areas, rural to urban areas, non-MDA areas to areas that achieved lymphatic filariasis (LF) control/elimination, and across borders—are relevant to LF elimination efforts. In many situations, migrants from endemic areas may not be able to establish active transmission foci and cause infection in local people in known nonendemic areas or countries. Urban areas are at risk of a steady inflow of LF-infected people from rural areas, necessitating prolonged intervention measures or leading to a prolonged “residual microfilaraemia phase.” Migration-facilitated reestablishment of transmission in areas that achieved significant control or elimination of LF appears to be difficult, but such risk can not be excluded, particularly in areas with efficient vector-parasite combination. Transborder migration poses significant problems in some countries. Listing of destinations, in endemic and nonendemic regions/countries, and formulation of guidelines for monitoring the settlements and the infection status of migrants can strengthen the LF elimination efforts.

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Section: Migration From Endemic or Non-mda Areas To Areas That Achievmentioning

confidence: 99%

Population Migration: Implications for Lymphatic Filariasis Elimination Programmes

Ramaiah

2013

PLoS Negl Trop Dis

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“…Thus, in countries where Aedes is a vector, infected migrants could be a greater threat. In some countries in the South Pacific region, where Aedes is a vector, a resurgence of LF has been observed from very low levels of post-evaluation infection [9] [14] whilst in Trinidad, where C. quinquefasciatus is the vector, no reintroduction of FL was seen in a 21-year study [10] [11].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Mass Drug Administration Impact on Transmission of Lymphatic Filariasis in 13 Sanitary Districts in Burkina Faso

Ouédraogo¹,

Ouedraogo²,

Tapsoba³

et al. 2018

JCDSA

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Introduction: Lymphatic filariasis (LF) is one of the neglected tropical diseases targeted for elimination as a public health issue in the world by 2020. To achieve this goal, one of the strategies is interruption of transmission using chemotherapy (mass drug administration). Burkina Faso in west Africa, an endemic country, has endorsed this resolution. In 2000, all Sanitary Districts (SD) in the country were endemic, and then a national elimination program has made it possible to stop mass treatment in 45 out of 70 SD over 12 years. Sixteen years later, 13 other SD were reeligible for Transmission Assessment Surveys (TAS). This study aimed to determine the current level of the Mass drugs Administration (MDA) impact indicators in these 13 targeted SD in order to decide whether we need to continue MDA. Method: It was a descriptive study that took place from June to September 2017 in 13 SD regrouped into 7 Evaluation Units (EU). The population of the study was 6 to 7 years old children. The community-based cluster survey method was used. The diagnostic test used to detect Wuchereria bancrofti's circulating antigen (W. bancrofti) is the Filariasis Test Strip (FTS). The critical threshold of positivity was set at 18 positive subjects per EU. Results: We sampled a total of 12,060 children, 48.9% were female and 51.1% male. In the 7 EU, 13 children were positive to W. bancrofti test. The average antigenic prevalence was 0.11% (13/12,060). In all EU, the number of positive subjects was below the critical threshold. Conclusion: At the end of this evaluation of the transmission of lymphatic filariasis in 13 SD of Burkina Faso, we can tell the MDA

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Waterborne Infectious Diseases, Approaches to Control

Fenwick¹,

Gabrielli²,

French³

et al. 2012

Encyclopedia of Sustainability Science and Technology

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Evidence for the interruption of transmission of lymphatic filariasis among schoolchildren in Trinidad and Tobago

Cited by 12 publications

References 4 publications

Population Migration: Implications for Lymphatic Filariasis Elimination Programmes

Population Migration: Implications for Lymphatic Filariasis Elimination Programmes

Evaluation of Mass Drug Administration Impact on Transmission of Lymphatic Filariasis in 13 Sanitary Districts in Burkina Faso

Waterborne Infectious Diseases, Approaches to Control

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