Field evaluation of Icon®Life, a long-lasting insecticidal net (LLIN) against Anopheles culicifacies and transmission of malaria in District Gautam Budh Nagar (Uttar Pradesh), India.
J Vector Borne Dis
; 49(3): 181-7, 2012 Sep.
Article
de En
| MEDLINE
| ID: mdl-23135014
ABSTRACT
BACKGROUND & OBJECTIVES:
In the present study, Icon®Life net, a long-lasting polyethylene net, 100 denier and bursting strength of minimum 280 kpa incorporated with deltamethrin @ 65 mg/m2 was evaluated for its efficacy in reducing the density of malaria vector Anopheles culicifacies and impact on malaria prevalence in a malaria endemic area of District Gautam Budh Nagar, India.METHODS:
Wash resistance of Icon®Life LLIN was determined up to 20 serial washings using An. culicifacies in cone bioassays under field conditions. Efficacy of Icon®Life LLIN was determined in the field in three sets of villages in District Gautam Budh Nagar (Uttar Pradesh), India, selected randomly for the intervention with Icon®Life LLIN, untreated nets and a control without any intervention for the period of August 2008-July 2009. Entomological and malariometric indices in all the three villages were compared during pre- and post-intervention periods for one year against An. culicifacies. A survey was also conducted in the village provided with Icon®Life LLIN to assessing the perception of community regarding acceptance of these nets by the community.RESULTS:
In cone bioassays on Icon®Life LLIN with An. culicifacies, >95% knockdown within 1 h and 100% mortality after 24 h exposure were reported even after 20× serial washings under field conditions. Results of the field study revealed reduced entry rate, resting density and parity rate of An. culicifacies in the village with Icon®Life LLIN when compared to no net and untreated net villages. Number of malaria cases reported were less in the Icon®Life LLIN used villages when compared to other two villages. The community compliance and acceptance was high and no adverse health events were reported by the households using these nets.CONCLUSIONS:
Icon®Life LLIN is an effective intervention for the control of An. culicifacies transmitted malaria in India. Long-term studies are indicated for the duration of effectiveness and to ascertain the epidemiological impact of the use of Icon®Life nets.
Recherche sur Google
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Lutte contre les moustiques
/
Moustiquaires de lit traitées aux insecticides
/
Paludisme
/
Anopheles
Type d'étude:
Evaluation_studies
/
Prevalence_studies
/
Risk_factors_studies
Limites:
Animals
Pays/Région comme sujet:
Asia
Langue:
En
Journal:
J Vector Borne Dis
Sujet du journal:
MEDICINA TROPICAL
/
PARASITOLOGIA
Année:
2012
Type de document:
Article
Pays d'affiliation:
Inde