Department of Community Medicine and Family Medicine, All India Institute of Medical Sciences (AIIMS)- Jodhpur, Rajasthan 342005, India.
District Vector Borne Disease Control Office, Health Department, Government of Bihar, Sitamarhi, Bihar 843301, India.
Trans R Soc Trop Med Hyg. 2020 Jul 1;114(7):549-552. doi: 10.1093/trstmh/traa026.
The visceral leishmaniasis (kala-azar) elimination programme in India relies on indoor residual spraying (IRS) for sand-fly vector control. Insecticide supplied by a new manufacturer was introduced for IRS in 2019. We aimed to explore whether this led to a change in insecticide quantity being used in the field.
We compared measurements of weights of 250 mL of insecticide powder of two different manufacturers using a certified and calibrated weighing instrument.
The density of insecticide supplied in 2019 was 43.4% lower than that in 2018, thereby leading to underdosing during current IRS activity.
Insecticide-measuring containers should be recalibrated prior to every IRS round and also when an insecticide manufacturer changes, so that the insecticide dose is maintained within the recommended range.
印度内脏利什曼病（黑热病）消除规划依赖室内滞留喷洒（IRS）来控制沙蝇媒介。2019 年，引入了一种新制造商供应的杀虫剂用于 IRS。我们旨在探索这是否导致田间使用的杀虫剂数量发生变化。
我们使用经过认证和校准的称重仪器比较了两种不同制造商的 250 毫升杀虫剂粉末的重量测量值。
2019 年供应的杀虫剂密度比 2018 年低 43.4%，从而导致当前 IRS 活动中的剂量不足。
在每次 IRS 轮次之前以及当杀虫剂制造商发生变化时，都应重新校准杀虫剂测量容器，以将杀虫剂剂量维持在推荐范围内。
