ImportPressure

The ImportPressure intervention class extends the ImportCases outbreak event. Rather than importing a deterministic number of cases on a scheduled day, ImportPressure applies a set of per-day rates of importation of infected individuals, over a corresponding set of durations. ImportPressure inherits from Outbreak; the Antigen and Genome parameters are defined as they are for all Outbreak events.

Warning

Be careful when configuring import pressure in multi-node simulations. Daily_Import_Pressures defines a rate of per-day importation for each node that the intervention is distributed to. In a 10 node simulation with Daily_Import_Pressures = [0.1, 5.0], the total importation rate summed over all nodes will be 1/day and 50/day during the two time periods. You must divide the per-day importation rates by the number of nodes.

Note

Parameters are case-sensitive. For Boolean parameters, set to 1 for true or 0 for false. JSON does not permit comments, but you can add “dummy” parameters to add contextual information to your files.

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
Daily_Import_Pressures array of floats 0 3.40E+3 0 The rate of per-day importation for each node that the intervention is distributed to.
{
    "Intervention_Config": {
        "Antigen": 0,
        "Genome": 0,
        "Durations": [100, 100, 100, 100, 100, 100, 100],
        "Daily_Import_Pressures": [0.1, 5.0, 0.2, 1.0, 2.0, 0.0, 10.0],
        "class": "ImportPressure"
    }
}
Durations array of integers 0 2.15E+0 1 The durations over which to apply import pressure.
{
    "Intervention_Config": {
        "Antigen": 0,
        "Genome": 0,
        "Durations": [100, 100, 100, 100, 100, 100, 100],
        "Daily_Import_Pressures": [0.1, 5.0, 0.2, 1.0, 2.0, 0.0, 10.0],
        "class": "ImportPressure"
    }
}
Number_Cases_Per_Node integer 0 2.15E+0 1

The number of new cases of Outbreak to import (per node).

Note

This will increase the population and there is no control over demographics of these individuals.

{
    "Intervention_Config": {
        "Antigen": 0,
        "Genome": 0,
        "Outbreak_Source": "ImportCases",
        "Number_Cases_Per_Node": 10,
        "class": "Outbreak"
    }
}
Import_Age float 0 43800 365 The age (in days) of infected import cases.
{
    "Import_Age": 10000
}
Incubation_Period_Override integer -1 2.15E+0 -1 The incubation period, in days, that infected individuals will go through before becoming infectious. This value overrides the incubation period set in the configuration file. Set to -1 to honor the configuration parameter settings.
{
    "Incubation_Period_Override": 0
}
Antigen integer 0 10 0 The antigenic ID of the outbreak infection.
{  
    "Intervention_Config": {
        "Antigen": 0,
        "Genome": 0,
        "Outbreak_Source": "PrevalenceIncrease",
        "class": "OutbreakIndividual"
    }   
}
Genome integer -2.15E+0 2.15E+0 0 The genetic ID of the outbreak infection.
{
    "Intervention_Config": {
        "Antigen": 0,
        "Genome": 0,
        "Outbreak_Source": "PrevalenceIncrease",
        "class": "OutbreakIndividual",
        "Incubation_Period_Override": 0
    }
}
{
    "Use_Defaults": 1,
    "Campaign_Name": "Initial Seeding",
    "Events": [{
        "class": "CampaignEvent",
        "Start_Day": 1,
        "Event_Name": "Outbreak",
        "Nodeset_Config": {
            "class": "NodeSetAll"
        },
        "Event_Coordinator_Config": {
            "class": "StandardInterventionDistributionEventCoordinator",
            "Target_Demographic": "Everyone",
            "Demographic_Coverage": 1.0,
            "Intervention_Config": {
                "Antigen": 0,
                "Genome": 0,
                "Durations": [100, 100, 100, 100, 100, 100, 100],
                "Daily_Import_Pressures": [0.1, 5.0, 0.2, 1.0, 2.0, 0.0, 10.0],
                "class": "ImportPressure"
            }
        }
    }]
}