Distribution géographique actuelle de la filariose lymphathique. 7 - Pacifique Sud

Rodhain, F; Rodhain-Rebourg, F.

doi:10.1016/s0399-077x(77)80025-5

Cited by 2 publications

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“…Historically, in the 1800s, LF was common in WAF, and it was reported that half of the adult population suffered from elephantiasis; the rate of microfilariae was 40% in 1954, 20.4% in 1959, and 21.9% in 1977. 9,[14][15][16] Monthly DEC distribution targeting the entire population officially began in 1978 by the French army and was continued until 1987, and then the distribution interval was decreased to every 6 months until 2001. 9 Impact of these interventions was demonstrated as microfilariae prevalence levels had decreased from 5.3% in 1978 to 3.2% in 1985 in Wallis, and from 1.7% to 0.4% in Futuna over the same period of time.…”

Section: Discussionmentioning

confidence: 99%

An Expanded Transmission Assessment Survey to Confirm the Interruption of Lymphatic Filariasis Transmission in Wallis and Futuna

Pezzoli

Kim

Mathelin

et al. 2019

The American Journal of Tropical Medicine and Hygiene

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Historically, the human prevalence of Wuchereria bancrofti infection in Wallis and Futuna (WAF) was among the highest in the Pacific and mass drug administration (MDA) against lymphatic filariasis (LF) either with diethylcarbamazine citrate (DEC) or the combination of DEC and albendazole had been implemented for decades. To determine whether LF antigen prevalence in WAF was lower than 1%, the infection threshold for elimination in an area where Aedes spp. are the principal vectors, we conducted the WHO-recommended transmission assessment survey in 2012. We present the results of a school-based survey, which targeted 1,014 students in all 13 elementary schools in WAF. From a fingerprick, the circulating filarial antigen (CFA) positivity was checked for grade 2-5 students using BinaxNOW filariasis test (immunochromatographic test). Of 935 children tested, three were positive for CFA in two schools. At the territory level, this was below the critical cutoff of nine cases, if the whole territory was considered as a single evaluation unit. The prevalence of CFA in WAF is less than 1%, reaching the goal for LF elimination set by the WHO. We were able to recommend stopping LF MDA and move to post-MDA surveillance to detect any recrudescence. This survey successfully paved the way for WAF to be validated as achieving LF elimination as a public health problem by 2020.

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Section: Discussionmentioning

confidence: 99%

An Expanded Transmission Assessment Survey to Confirm the Interruption of Lymphatic Filariasis Transmission in Wallis and Futuna

Pezzoli

Kim

Mathelin

et al. 2019

The American Journal of Tropical Medicine and Hygiene

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Sequence and secondary structure of the rDNA second internal transcribed spacer in the sibling species Culex pipiens L. and Cx. quinquefasciatus Say (Diptera: Culicidae)

Severini

Sllvestrlnl

Manclnl

et al. 1996

Insect Molecular Biology

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The primary and secondary structure of the second internal transcribed spacer (ITS2) of ribosomal DNA (rDNA) of two members of the Cx. pipiens complex, Cx. pipiens and Cx, quinquefasciatus, were examined in order to better understand the relationships between these two sibling mosquito species. The length of the sequenced rDNA fragments was 512 bp (Cx. pipiens) and 513 bp (Cx. quinquefasciatus), including the ITS2 regions and flanking 5.8S-28S coding regions. The ITS2 sequences of Cx. pipiens and Cx. quinquefasciatus were 297 and 298 bp in length respectively and showed a 97% identity. In fact, they had identical G+C content (58%) and the only differences observed are six mismatches (three transitions/three transversions), six single-base and one triple-base deletions/ insertions. The observed ITS2 secondary structures of Cx. pipiens and Cx. quinquefasciatus were very similar. Furthermore, the ITS2 sequences of specimens belonging to three populations of Cx. pipiens from Italy and four populations of Cx. quinquefasciatus (three from Africa and one from North America) were analysed in order to detect the presence of potential species-specific diagnostic restriction sites.

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Distribution géographique actuelle de la filariose lymphathique. 7 - Pacifique Sud

Cited by 2 publications

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An Expanded Transmission Assessment Survey to Confirm the Interruption of Lymphatic Filariasis Transmission in Wallis and Futuna

An Expanded Transmission Assessment Survey to Confirm the Interruption of Lymphatic Filariasis Transmission in Wallis and Futuna

Sequence and secondary structure of the rDNA second internal transcribed spacer in the sibling species Culex pipiens L. and Cx. quinquefasciatus Say (Diptera: Culicidae)

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