MalariaChallenge

The MalariaChallenge intervention class is a node-level intervention similar to Outbreak. However, instead of distributing infections, it distributes malaria challenges by either tracking numbers of sporozoites or infectious mosquito bites.

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
Challenge_Type	enum	NA	NA	NA	The type of malaria challenge. Possible values are: InfectiousBites If this value is selected, use with the corresponding Infectious_Bite_Count parameter. Sporozoites If this value is selected, use with the corresponding Sporozoite_Count parameter.	{ "Challenge_Type": "InfectiousBites" }
Coverage	float	0	1	1	The fraction of individuals receiving an intervention.	{ "Coverage": 1.0 }
Disqualifying_Properties	array of strings	NA	NA	[]	A list of IndividualProperty key:value pairs that cause an intervention to be aborted (persistent interventions will stop being distributed to individuals 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" ] }
Infectious_Bite_Count	integer	0	1000	1	The number of infectious bites per person. Use when Challenge_Type is set to InfectiousBites.	{ "Infectious_Bite_Count": 2 }
Intervention_Name	string	NA	NA	MalariaChallenge	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": "MalariaChallenge", "Intervention_Name": "Mosquito challenge by sporozoites" } }
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" }
Sporozoite_Count	integer	0	1000	1	The number of sporozoites per person. Use when Challenge_Type is set to Sporozoites.	{ "Sporozoite_Count": 3 }

{
    "Use_Defaults": 1,
    "Events": [{
        "class": "CampaignEvent",
        "Nodeset_Config": {
            "class": "NodeSetAll"
        },
        "Start_Day": 40,
        "Event_Coordinator_Config": {
            "class": "StandardInterventionDistributionEventCoordinator",
            "Intervention_Config": {
                "class": "MalariaChallenge",
                "Challenge_Type": "InfectiousBites",
                "Coverage": 1.0,
                "Infectious_Bite_Count": 2,
                "Sporozoite_Count": 3
            }
        }
    }]
}