SpaceSpraying

The SpaceSpraying intervention class implements node-level vector control by spraying pesticides outdoors. This intervention targets specific habitat types, and imposes a mortality rate on all targeted (both immature and adult male and female) mosquitoes. All mosquitoes have daily mortality rates; mortality for adult females due to spraying is independent of whether or not they are feeding.

At a glance:

• Distributed to: Nodes

• Serialized: No. You need to redistribute when starting from a serialized file.

• Uses insecticides: Yes. It can target sub-groups using genomes, especially if you want to target specific sexes.

• Time-based expiration: No

• Purge existing: Yes. If a new intervention is added to to the node, the existing intervention of the same name is removed when the new one is added.

• Vector killing contributes to: Die Without Attempting To Feed & Die Before Attempting Human Feed

• Vector effects: Killing

• Vector sexes affected: Males and females

• Vector life stage affected: Adult and immature

Note

Parameters are case-sensitive. For Boolean parameters, set to 1 for true or 0 for false. Minimum, maximum, or default values of “NA” indicate that those values are not applicable for that parameter.

EMOD does not use true defaults; that is, if the dependency relationships indicate that a parameter is required, you must supply a value for it. However, many of the tools used to work with EMOD will use the default values provided below.

JSON format does not permit comments, but you can add “dummy” parameters to add contextual information to your files. Any keys that are not EMOD parameter names will be ignored by the model.

The table below describes all possible parameters with which this class can be configured. The JSON example that follows shows one potential configuration.

Parameter	Data type	Minimum	Maximum	Default	Description	Example
Cost_To_Consumer	float	0	999999	10	The unit cost per vector control (unamortized).	{ "Cost_To_Consumer": 8 }
Disqualifying_Properties	array of strings	NA	NA	[]	A list of NodeProperty key:value pairs that cause an intervention to be aborted (persistent interventions will stop being distributed to nodes with these values). See NodeProperties and IndividualProperties parameters for more information. Generally used to control the flow of health care access. For example, to prevent the same individual from accessing health care via two different routes at the same time.	{ "Disqualifying_Properties": [ "InterventionStatus:LostForever" ] }
Insecticide_Name	string	NA	NA	Uninitialized string	The name of the insecticide defined in <config.Insecticides> for this intervention. If insecticides are being used, this must be defined as one of those values; if they are not being used this can be empty. It cannot have a value if you did not configure <config.Insecticides>.	{ "Insecticide_Name": "carbamate" }
Intervention_Name	string	NA	NA	SpaceSpraying	The optional name used to refer to this intervention as a means to differentiate it from others that use the same class.	{ "Intervention_Config": { "class": "SpaceSpraying", "Intervention_Name": "Outdoor DDT spraying" } }
Killing_Config	json object	NA	NA	NA	The configuration of killing efficacy and waning for space spaying. Specify how this effect decays over time using one of the Waning effect classes.	{ "Killing_Config": { "Box_Duration": 3650, "Initial_Effect": 0.5, "class": "WaningEffectBox" } }
New_Property_Value	string	NA	NA	“”	An optional NodeProperty key:value pair that will be assigned when the intervention is applied. See NodeProperties and IndividualProperties parameters for more information.	{ "New_Property_Value": "HasHealthCare:YES" }
Spray_Coverage	float	0	1	0	The portion of the node that has been sprayed. This value is multiplied by the current efficacy of the WaningEffect.	{ "Spray_Coverage": 0.8 }

{
    "Use_Defaults": 1,
    "Campaign_Name": "SpaceSpraying",
    "Events": [{
        "class": "CampaignEvent",
        "Nodeset_Config": {
            "class": "NodeSetAll"
        },
        "Start_Day": 4,
        "Event_Coordinator_Config": {
            "class": "NodeEventCoordinator",
            "Intervention_Config": {
                "class": "SpaceSpraying",
                "Cost_To_Consumer": 0,
                "Killing_Config": {
                    "class": "WaningEffectBoxExponential",
                    "Box_Duration": 100,
                    "Decay_Time_Constant": 150,
                    "Initial_Effect": 1
                },
                "Insecticide_Name": "carbamate",
                "Spray_Coverage": 0.9
            }
        }
    }]
}