• Evaluation of control activities also appeared to vary across countries. Some countries reported that surveillance or control plans are evaluated and readjusted regularly, while others reported that this is done less frequently, never, or that the frequency is unknown. Respondents also identified updated guidance and practical protocols, as well as better evidence on the effectiveness and public-health benefit of control measures, as important. These findings indicate that the evidence available to assess and compare control approaches remains uneven across countries.
• Cost-benefit and cost-effectiveness considerations were also identified as relevant operational gaps. The questionnaire findings indicate that evidence on the public-health benefit of mosquito control and information to support efficient allocation of resources remains important areas for respondents. This includes better understanding of the relative value of proactive and reactive control approaches, although the availability of such analyses appears limited and varies by country.