Intensity of pyrethroid resistance in Anopheles gambiae before and after a mass distribution of ITNs in DRC

PMI VectorLink Published in Malaria Journal

A recent article published in Malaria Journal, which included authors from the PMI VectorLink Project, showed that moderate or high intensity pyrethroid resistance was detected nationwide in in the Democratic Republic of Congo (DRC) and is a serious threat to sustained malaria control with pyrethroid-treated long-lasting insecticidal nets (LLINs). Based on the findings, the authors suggest that next generation nets (PBO nets or bi-treated nets) be considered for mass distribution.

The article reports, “Between 2011 and 2018, an estimated 134.8 million pyrethroid LLINs were distributed nationwide for malaria control. Pyrethroid resistance has developed in DRC in recent years, but the intensity of resistance and impact on LLIN efficacy was not known. Therefore, the intensity of resistance of Anopheles gambiae sensu lato (s.l.) to permethrin and deltamethrin was monitored before and after a mass distribution of LLINs in Kinshasa in December 2016, and in 6 other sites across the country in 2017 and 11 sites in 2018.”

Read the full article here.