model_measles_nga02

Simulations of measles transmission in Nigeria. The model is structured so that each state is implemented separately. Age-structured mortality from UN WPP reports for national estimates have been used for all states; crude birth rates are initialized using values from the 2013 Nigeria DHS and scaled in time using relative trends from the UN WPP.

Important features include:

• Multi-node network used to represent regions of Nigeria at the adm02 scale.

• Network infectivity contagion transfer between nodes.

• Annual seasonality in measles infectivity.

• Spatially varying rates of routine immunization.

• Pre-specified calendar of supplemental immunization activities (SIAs).

• Maternally derived immunity.

• Maximum simulation duration based on elapsed time.

• Weighted agents to represent multiple individuals per agent.

• Age-based immunity initialization to approximate endemic transmission.

• Infectivity reservoir to represent persistent exogeneous importation.

• Event based notification of vaccine doses delivered by routine immunization.

• Future SIA vaccines as non-contagious infections for labeling and tracking.