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Efficacy of topical mosquito repellent (picaridin) plus long-lasting insecticidal nets versus long-lasting insecticidal nets alone for control of malaria: a cluster randomised controlled trial Universiteit Antwerpen Instituut voor Tropische Geneeskunde

Vincent Sluydts, Lies Durnez, Somony Heng, Charlotte Gryseels, Lydie Canier, Saorin Kim, Karel Van Roey, Karen Kerkhof, Nimol Khim, Sokny Mao, et al.
Summary Background Although eff ective topical repellents provide personal protection against malaria, whether mass use of topical repellents in addition to long-lasting insecticidal nets can contribute to a further decline of malaria is not known, particularly in areas where outdoor transmission occurs. We aimed to assess the epidemiological effi cacy of a highly eff ective topical repellent in addition to long-lasting insecticidal nets in ...

Traditional nets interfere with the uptake of long-lasting insecticidal nets in the peruvian Amazon: the relevance of net preference for achieving high coverage and use Instituut voor Tropische Geneeskunde

Koen Peeters, Joan Muela Ribera, V. Soto, A. Tenorio, S. Hoibak, A.R. Aguirre, E. Toomer, H. Rodriguez, A. Llanos-Cuentas, Umberto D`Alessandro, et al.
BACKGROUND: While coverage of long-lasting insecticide-treated nets (LLIN) has steadily increased, a growing number of studies report gaps between net ownership and use. We conducted a mixed-methods social science study assessing the importance of net preference and use after Olyset(R) LLINs were distributed through a mass campaign in rural communities surrounding Iquitos, the capital city of the Amazonian region of Peru. METHODS: The study was ...

Long-lasting insecticidal nets fail at household level to reduce abundance of sandfly vector **Phlebotomus argentipes** in treated houses in Bihar (India) Universiteit Antwerpen Instituut voor Tropische Geneeskunde

Diwakar S. Dinesh, Pradeep Das, Albert Picado, Clive Davies, Niko Speybroeck, Bart Ostyn, Marleen Boelaert, Marc Coosemans
Objective To determine whether the use of long-lasting insecticidal nets (LLINS) at household level are effective in reducing the abundance of Phlebotomus argentipes, vector of anthroponotic visceral leishmaniasis in India, Nepal and Bangladesh. Methods The impact of two long-lasting nets (Olyset and PermaNet) on indoor sandfly abundance was evaluated in selected houses of three endemic hamlets in Bihar (India). It was assumed that most ...

Can the collection of expired long-lasting insecticidal nets reduce their coverage and use? Sociocultural aspects related to LLIN life cycle management and use in four districts in Madagascar Instituut voor Tropische Geneeskunde

Ambinina Ramanantsoa, Marta Wilson-Barthes, Rindra Rahenintsoa, Sarah Hoibak, Harilala Ranaivoharimina, Martha Delphine Rahelimalala, Avotiana Rakotomanga, Alyssa Finlay, Joan Muela Ribera, Koen Peeters, et al.

BACKGROUND: There is growing awareness of the likely impact increased numbers of LLINs will have on the environment, if not disposed of or recycled appropriately. As part of a World Health Organization (WHO) and United Nations Environment Programme (UNEP) pilot study to assess environmentally-sound and cost-effective LLIN recycling strategies, the USAID-Deliver Project collected 22,559 used bed nets in Madagascar. A social science study was ...

Deltamethrin and permethrin residue on long-lasting insecticidal nets after 18 months of use in a visceral leishmaniasis-endemic area in Nepal Instituut voor Tropische Geneeskunde

M Das, L Roy, A. Picado, A Kroeger, Suman Rijal, Marleen Boelaert
The insecticide residue on two types of long-lasting insecticidal nets (LLIN), Olyset Net and PermaNet 2.0, used in a visceral leishmaniasis-endemic village in eastern Nepal was quantified using HPLC. After two washes during 18 months of use the mean insecticide residues on PermaNet 2.0 and Olyset Net were 53.5mg/m(2) (97.3% of the target dose) of deltamethrin and 911.8mg/m(2) (91.2% of the target dose) of permethrin, respectively. These ...

Comparison of the laboratory standard washing using CIPAC washing agent and the domestic washing on three recommended types of long-lasting insecticidal mosquito nets Universiteit Gent

Jean Pierre Nabléni Ouattara, Johanna Louwagie, Olivier Pigeon, Pieter Spanoghe
Background: One of the best ways to prevent malaria is the use of insecticide-treated bed nets. Manufacturers pursue easier, safer and more efficient nets. Hence, many studies on the efficacy and wash resistance using World Health Organization standards have been reported. The commonly used detergent is "Savon de Marseille", because it closely resembles actually used soaps. At the 54th Collaborative International Pesticides Analytical Council ...

Bio-efficacy of selected long-lasting insecticidal nets against pyrethroid resistant Anopheles arabiensis from South-Western Ethiopia Universiteit Gent

Delenasaw Yewhalaw, Abebe Asale, Kora Tushune, Yehenew Getachew, Luc Duchateau, Niko Speybroek
Background: The emergence and spread of insecticide resistance in the major African malaria vectors Anopheles gambiae s.s. and Anopheles arabiensis may compromise control initiatives based on insecticide-treated nets (ITNs) or indoor residual spraying (IRS), and thus threaten the global malaria elimination strategy. Methods: We investigated pyrethroid resistance in four populations of An. arabiensis from south-western Ethiopia and then assessed ...