Monitoring insecticide resistance in malaria vectors in Shandong Province: approaching malaria elimination

[...]to assess the risk of transmission and the epidemiology and trends of malaria, this study analyzed the malaria vector surveillance program in Shandong Province during 2010-2018. The last local case of malaria occurred in Huanggang town in 2011. [...]larvae were collected from potential An. sinensis breeding sites (rice fields, ditches, streams, rivers, etc.) of Huanggang town from 2012-2018. According to the resistance interpretation of the WHO in 2013, a mortality rate of 98-100% was classified as susceptible (S), 90-97% was classified as suspected resistant (SR), and less than 90% was classified as resistant (R). Similar results were reported for An. lesteri and An. anthropophagus, which have disappeared in the neighboring Jiangsu Province (Li et al. 2018) and Anhui Province (Liu Feng et al. 2017). [...]national surveillance (Feng et al. 2014) showed that An. sinensis accounted for more than 83% of the Anopheles populations at the monitoring sites, and other Anopheles mosquitoes accounted for a relatively low proportion.