Larvicides

The Larvicides intervention class configures habitat reduction for mosquito breeding sites that are poisoned by vector-transported larvicides. This intervention accommodates vector-transported larvicides where resting surfaces may be treated not just with IRSHousingModification to kill mosquitoes, but also with particles that can be dispersed by mosquitoes to poison larval development sites. In particular, a relatively small fraction of resting events may result in a relatively large fraction of larval habitat.

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
Blocking_Config	JSON object	NA	NA	NA	The configuration of larval habitat reduction and waning for targeted stage. Specify how this effect decays over time using one of the Waning effect classes.	{ "Blocking_Config": { "Box_Duration": 3650, "Initial_Effect": 0.0, "class": "WaningEffectBox" } }
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" ] }
Habitat_Target	enum	NA	NA	TEMPORARY_RAINFALL	The larval habitat type targeted for larvicide. This is a required parameter. See Larval habitat parameters for more information. Possible values are: TEMPORARY_RAINFALL WATER_VEGETATION HUMAN_POPULATION CONSTANT BRACKISH_SWAMP LINEAR_SPLINE ALL_HABITATS	{ "Habitat_Target": "WATER_VEGETATION" }
Intervention_Name	string	NA	NA	NA	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": "Larvicides", "Intervention_Name": "Themiphos application" } }
Killing_Config	JSON object	NA	NA	NA	The configuration of larval killing efficacy and waning for targeted stage. Specify how this effect decays over time using one of the Waning effect classes.	{ "Killing_Config": { "Box_Duration": 100, "Decay_Time_Constant": 150, "Initial_Effect": 0.2, "class": "WaningEffectBoxExponential" } }
New_Property_Value	string	NA	NA	NA	An optional NodeProperty key:value pair that will be assigned when the intervention is distributed. See NodeProperties and IndividualProperties parameters for more information. Generally used to indicate the broad category of health care cascade to which an intervention belongs to prevent individuals from accessing care through multiple pathways. For example, if an individual must already be taking a particular medication to be prescribed a new one.	{ "New_Property_Value": "InterventionStatus:None" }

{
    "Events": [{
        "class": "CampaignEvent",
        "Nodeset_Config": {
            "class": "NodeSetAll"
        },
        "Start_Day": 140,
        "Event_Coordinator_Config": {
            "class": "StandardInterventionDistributionEventCoordinator",
            "Intervention_Config": {
                "Cost_To_Consumer": 3.75,
                "Habitat_Target": "ALL_HABITATS",
                "Killing_Config": {
                    "Box_Duration": 3650,
                    "Initial_Effect": 0.1,
                    "class": "WaningEffectBox"
                },
                "Blocking_Config": {
                    "Box_Duration": 0,
                    "Initial_Effect": 0.0,
                    "class": "WaningEffectBox"
                },
                "Reduction": 0,
                "class": "Larvicides"
            }
        }
    }],
    "Use_Defaults": 1
}