WNV vectors: 1. Preventive control of mosquito vectors of WNV to reduce disease risk (and/or nuisance); 2. Reactive control after detection of WNV cases to control an outbreak; Aedes invasive mosquitoes: 1. Elimination of invasive Aedes mosquitoes after introductions; 2. Preventive control of invasive Aedes mosquitoes to reduce disease risk (and/or nuisance); 3. Reactive control after detection of autochthonous cases of dengue, chikungunya or Zika to control an outbreak 1. Each year; 2. Every 2 – 5 years; 3. Every 6 years or longer; 4. Never; Don't know/NA

5.10. How do you classify public funding for mosquito control in your country? Specify for each objective. WNV vectors: 1. Preventive control of mosquito vectors of WNV to reduce disease risk (and/or nuisance); 2. Reactive control after detection of WNV cases to control an outbreak; Aedes invasive mosquitoes: 1. Elimination of invasive Aedes mosquitoes after introductions; 2. Preventive control of invasive Aedes mosquitoes to reduce disease risk (and/or nuisance); 3. Reactive control after detection of autochthonous cases of dengue, chikungunya or Zika to control an outbreak 1. Ad hoc and limited in time (e.g. for protecting mass gathering outdoor events); 2. Embedded in a long-term strategy (> 3 years) of disease risk control; Don't know

5.11. Who is in charge of the execution of the mosquito control in your country? Here we ask who carries out the day-to-day activities of mosquito control. This is at organizational level 3 (Fig.1). Specify for each objective. WNV vectors: 1. Preventive control of mosquito vectors of WNV to reduce disease risk (and/or nuisance); 2. Reactive control after detection of WNV cases to control an outbreak; Aedes invasive mosquitoes: 1. Elimination of invasive Aedes mosquitoes after introductions; 2. Preventive control of invasive Aedes mosquitoes to reduce disease risk (and/or nuisance); 3. Reactive control after detection of autochthonous cases of dengue, chikungunya or Zika to control an outbreak 1. Dedicated agency; 2. Public/Veterinary health agency; 3. Scientific/Academic institution; 4. Private company or organization; 5. Other (please specify for each objective); Don't know/NA

3.12. Specify which organization/agency is responsible for the execution of the mosquito control. Please provide the name of the organization/agency and their website. There can be more than one if e.g. the execution of the mosquito control is at sub-national level. If the responsibility is at municipality level, please provide a few representative examples and explain in the free text space below. WNV vectors: 1. Preventive control of mosquito vectors of WNV to reduce disease risk (and/or nuisance); 2. Reactive control after detection of WNV cases to control an outbreak; Aedes invasive mosquitoes: 1. Elimination of invasive Aedes mosquitoes after introductions; 2. Preventive control of invasive Aedes mosquitoes to reduce disease risk (and/or nuisance); 3. Reactive control after detection of autochthonous cases of dengue, chikungunya or Zika to control an outbreak Agency Name; Agency Website; Comment

5.13a. Please provide examples of municipalities responsible for WNV vector control. Put "none" or "unknown" if you don't know WNV vectors: 1. Preventive control of mosquito vectors of WNV to reduce disease risk (and/or nuisance); 2. Reactive control after detection of WNV cases to control an outbreak; Municipalities 5.13b. Please provide examples of municipalities responsible for Aedes invasive mosquito control. Put "none" or "unknown" if you don't know Aedes invasive mosquitoes: 1. Elimination of invasive Aedes mosquitoes after introductions; 2. Preventive control of invasive Aedes mosquitoes to reduce disease risk (and/or nuisance); 3. Reactive control after detection of autochthonous cases of dengue, chikungunya or Zika to control an outbreak municipalities 5.14. What type of mosquito control is implemented in your country (irrespective of deployment)? Multiple answers per group and objective are possible. WNV vectors: 1. Preventive control of mosquito vectors of WNV to reduce disease risk (and/or nuisance); 2. Reactive control after detection of WNV cases to control an outbreak; Aedes invasive mosquitoes: 1. Elimination of invasive Aedes mosquitoes after introductions; 2. Preventive control of invasive Aedes mosquitoes to reduce disease risk (and/or nuisance); 3. Reactive control after detection of autochthonous cases of dengue, chikungunya or Zika to control an outbreak 1. Targeting immature stages using nonbiocidal intervention (such as source reduction, surface films and Biological control such as copepods or fish); 2. Targeting adults using biocides; 3. Targeting adults using non-biocidal intervention (such as mass trapping); 4. Environmental management; 5. Targeting adult stages using innovative methods such as SIT; 6. Formalised social mobilization program; 7. Other (please specify for each objective); 8. No control; Don't know/NA

5.15. For each of the mosquito control types listed above, please provide details about the method (e.g. active ingredient, formulation, method of administration, and, if possible, the annual public budget for this activity). WNV vectors: 1. Preventive control of mosquito vectors of WNV to reduce disease risk (and/or nuisance); 2. Reactive control after detection of WNV cases to control an outbreak; Aedes invasive mosquitoes: 1. Elimination of invasive Aedes mosquitoes after introductions; 2. Preventive control of invasive Aedes mosquitoes to reduce disease risk (and/or nuisance); 3. Reactive control after detection of autochthonous cases of dengue, chikungunya or Zika to control an outbreak Free text

5.16. What is the overall mosquito control annual budget in your country? If you don't know put "none" or "unknown"

Free text

5.17. Is this budget covering all vector control needs?

Yes; No; Don't know/NA

5.18. Please rate the following needs for mosquito control in your country (on a Likert scale) in terms of importance. Resources. Need for better evidence on how investing in mosquito control has a public health benefit; Need for more funding (for staff, consumables); Need for more training of human resources (irrespective of funding for mosquito control being available, there is not enough knowledge and capacity); Responsibilities: Need for a dedicated (national) agency for mosquito control; Need for clarity about competencies (Who is responsible for what?); Coordination: Need for more international coordination between countries; Need for more (national) coordination between sub-national actors within the same sector; Need for development of multisector collaboration; Need for more collaboration between health institutes and