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5 results for “Long-lasting insecticidal nets”
Data from: Decreased bioefficacy of long-lasting insecticidal nets and the resurgence of malaria in Papua New Guinea
<p>Papua New Guinea (PNG) has the highest malaria transmission outside of Africa. Long-lasting insecticidal nets (LLINs) are believed to have helped to reduce average malaria prevalence in PNG from 15.7% in 2008 to 1% in 2014. Since 2015 malaria indicators in PNG have risen significantly. In the present study, we observed a drastically decreased bioefficacy of unused LLINs with manufacturing dates between 2013 and 2019 collected from villages and LLIN distributors in PNG. Specifically, of the tested n=167 LLINs manufactured between 2013 and 2019 only 16% achieved <a>≥ 80% 24h-mortality or ≥ 95% 60 min-knockdown in cone bioassays </a>conducted with pyrethroid susceptible <i>Anopheles farauti</i> mosquitoes. In contrast, all (100%, n=25) LLINs with manufacturing dates between 2007 and 2012 achieved ≥ 80% 24h-mortality or ≥ 95% 60 min-knockdown. This difference was extremely statistically significant. We hypothesise that decreased bioefficacy of LLINs has contributed to the malaria resurgence in PNG.</p>
Data from: Long-lasting insecticidal net use and asymptomatic malaria parasitaemia among household members of laboratory-confirmed malaria patients attending selected health facilities in Abuja, Nigeria, 2016: a cross-sectional survey
Introduction: In Nigeria, malaria remains a major burden. There is the presupposition that household members could have common exposure to malaria parasite and use of long-lasting insecticidal net (LLIN) could reduce transmission. This study was conducted to identify factors associated with asymptomatic malaria parasitaemia and LLIN use among households of confirmed malaria patients in Abuja, Nigeria. Methods: A cross-sectional survey was conducted from March to August 2016 in twelve health facilities selected from three area councils in Abuja, Nigeria. Participants were selected using multi-stage sampling technique. Overall, we recruited 602 participants from 107 households linked to 107 malaria patients attending the health facilities. Data on LLIN ownership, utilization, and house characteristics were collected using a semi-structured questionnaire. Blood samples of household members were examined for malaria parasitaemia using microscopy. Data were analyzed using descriptive statistics, Chi-square, and logistic regression (α=0.05). Results: Median age of respondents was 16.5 years (Interquartile range: 23 years); 55.0% were females. Proportions of households that owned and used at least one LLIN were 44.8% and 33.6%, respectively. Parasitaemia was detected in at least one family member of 102 (95.3%) index malaria patients. Prevalence of asymptomatic malaria parasitaemia among study participants was 421/602 (69.9%). No association was found between individual LLIN use and malaria parasitaemia (odds ratio: 0.9, 95% confidence interval (95%CI): 0.6-1.3) among study participants. Having bushes around the homes was associated with having malaria parasitaemia (adjusted OR (aOR): 2.7, 95%CI: 1.7-4.2) and less use of LLIN (aOR: 0.4, 95%CI: 0.2-0.9). Living in Kwali (aOR: 0.1, 95% CI: 0.0-0.2) was associated with less use of LLIN. Conclusion: High prevalence of asymptomatic malaria and low use of LLIN among household members of malaria patients portend the risk of intra-household common source of malaria transmission. We recommend household health education on LLIN use and environmental management. Study to explore the role of preventive treatment of household members of confirmed malaria patient in curbing transmission is suggested. Strategies promoting LLIN use need to be intensified in Kwali.
The Combined Use of Indoor Residual Spraying (IRS) and Long-lasting Insecticidal Nets (LLINs) for Malaria Prevention
ClinicalTrials.gov study NCT01697852. IPD Sharing: Not stated. Countries: 1. Publications: 4.
Data from: Long-lasting insecticidal net use and asymptomatic malaria parasitaemia among household members of laboratory-confirmed malaria patients attending selected health facilities in Abuja, Nigeria, 2016: a cross-sectional survey
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Data from: Decreased bioefficacy of long-lasting insecticidal nets and the resurgence of malaria in Papua New Guinea
Open the record for dataset details and reuse information.
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