The Impact of Multiple Rounds of Indoor Residual Spraying on Malaria Incidence and Hemoglobin Levels in a High-Transmission Setting
| Autor: | Marc-Antoine Tutt-Guérette, Deepa Jahagirdar, Grant Dorsey, Margaux L. Sadoine, Moses R. Kamya, Kathryn T. Morrison, Sarah G. Staedke, Kate Zinszer, Isabel Rodriguez-Barraquer, Bryan Greenhouse, Emmanuel Arinaitwe, Sarah Vahey, Katia Charland, John Rek, Joaniter I. Nankabirwa |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Male
Insecticides Mosquito Control 030231 tropical medicine Indoor residual spraying Organophosphonates Phenylcarbamates Hemoglobin levels Parasitemia law.invention Cohort Studies 03 medical and health sciences Major Articles and Brief Reports Hemoglobins 0302 clinical medicine law Immunology and Allergy Medicine Humans Uganda 030212 general & internal medicine Child business.industry Incidence Repeated measures design Infant medicine.disease Confidence interval Malaria Infectious Diseases Transmission (mechanics) Child Preschool Cohort Female Hemoglobin business Demography |
| Zdroj: | J Infect Dis |
| ISSN: | 0022-1899 |
| Popis: | Background Indoor residual spraying (IRS) is widely used as a vector control measure, although there are conflicting findings of its effectiveness in reducing malaria incidence. The objective of this study was to estimate the effect of multiple IRS rounds on malaria incidence and hemoglobin levels in a cohort of children in rural southeastern Uganda. Methods The study was based upon a dynamic cohort of children aged 0.5–10 years enrolled from August 2011 to June 2017 in Nagongera Subcounty. Confirmed malaria infections and hemoglobin levels were recorded over time for each participant. After each of 4 rounds of IRS, malaria incidence, hemoglobin levels, and parasite density were evaluated and compared with pre-IRS levels. Analyses were carried out at the participant level while accounting for repeated measures and clustering by household. Results Incidence rate ratios comparing post-IRS to pre-IRS incidence rates for age groups 0–3, 3–5, and 5–11 were 0.108 (95% confidence interval [CI], .078–.149), 0.173 (95% CI, .136–.222), and 0.226 (95% CI, .187–.274), respectively. The mean hemoglobin levels significantly increased from 11.01 (pre-IRS) to 12.18 g/dL (post-IRS). Conclusions Our study supports the policy recommendation of IRS usage in a stable and perennial transmission area to rapidly reduce malaria transmission. |
| Databáze: | OpenAIRE |
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