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Table 1 Individual and contact location attributes

From: Economic analysis of pandemic influenza mitigation strategies for five pandemic severity categories

Agents/Objects

Description

Individual

The individual is the primary agent entity in the model. Each individual has an age, a household, a (possible) daytime hub, an activity state, a current infection state, and time-of-infection (when infected) that explicitly tracks the progression of the infectious disease. Individuals move between different locations at different time periods, making contacts with other individuals.

Locations

Description

When contact occurs

Who participates in contact

Average number of contacts

Household

Each household is made up from a certain number of individuals following census data, spatially located.

Every day during Day and Night cycle.

Members of each household

Average household size is 2.54 individual

Childcare

Child care and pre-schools; number and size determined from local government data.

Weekdays during Day cycle.

Child (age 0–4) and adult (worker) individuals who are allocated into the hub if they are active*.

Maximum group size is 10.

School

Primary and secondary schools; number, size and age structure determined from state education department data.

Weekdays during Day cycle.

Child (ages 5–17) and adult (teacher) individuals who are allocated into the hub if they are active*.

Maximum group size is 10.

Adult education

Tertiary and vocational education institutions, number and size determined from state education department data.

Weekdays during Day cycle.

Young adult and adult individuals who are allocated into the hub if they are active*.

Maximum group size is 10.

Workplace

Number and size of determined for local government business survey data.

Weekdays during Day cycle.

Adult individuals who are allocated into the hub if they are active*.

Maximum group size is 10.

Community

Represents all contact between individuals in the community that is not repeated on a daily basis.

Everyday during Day cycle.

All individuals make contacts if they are active*, contact is random but weighted towards pairs with nearby household locations.

4 contacts for each individual (2 if community contact reduction is in effect)

  1. * All individuals are active during day cycles unless: he/she is symptomatically infected and chooses to withdraw to household (50% chance for adults, 90% for children); or if his/her school or workplace is affected by social distancing interventions; or if he/she is a parent of a child who is inactive (only one parent per family is affected this way).