Overview

Types
(1) Anomaly Detection
(2) Disease Dynamics
Overview

NAADSM is a computer program designed to simulate the spread and control of foreign animal diseases in a population of susceptible livestock herds. NAADSM is herd-based, is a state transition model, a stochastic simulation, simulates spatial and temporal aspects of disease spread, and includes cost accounting components. The outcome of an NAADSM simulation (as with any computer simulation model) depends heavily on the quality of the scenario input parameters; the assumptions of the modeler who created the scenario; and the capabilities and limitations of the model framework itself. The utility of disease models like those created with NAADSM critically depends on participation and interpretation of experts familiar with the behavior of disease within populations, and with the limitations, assumptions, and output of the model.

Question

What is the spread of an animal disease during an outbreak?

Purpose

Forecasting

Scope

Platform

Goals
(1) Consequence management
(2) Situational awareness
Decision support

Yes

Based on
Simulation update
(1) Stochastic
Methods
(1) Compartments/SEIR
Products
(1) Disease incidence
(2) Economic assessment
(3) Occurrence map
Documents
(1) Document Reeves A, Hupalo R, Patyk KA, Hill AE: User's guide for the North American animal disease spread… (2012)
Notes
(2) Document Cozzens T, Gebhardt K, Shwiff S, Lutman M, Pedersen K, et al.: Modeling the economic impact of f… (2010)
Notes
(3) Document Dube C, Ribble C, Kelton D, McNab B, Javier S, et al.: Network analysis of livestock movements t… (2008)
Notes
(4) Document Dube C, Sanchez J, Reeves A: Adapting existing models of highly contagious diseases to countries… (2011)
Notes
(5) Document Dube C, Stevenson MA, Garner MG, Sanson RL, Corsdo BA, et al.: A comparison of predictions made … (2007)
Notes
(6) Document Ketusing N, Reeves A, Portacci K, Yano T, Olea-Popelka F, et al.: Evaluation of strategies for t… (2011)
Notes
(7) Document Reeves A, Salman MA, Hill AE: Approaches for evaluating veterinary epidemiological models: verif… (2011)
Notes
(8) Document Pendell DL, Leatherman J, Schroeder TC, Alward GS: The economic impacts of a Foot-and-Mouth Dise… (2007)
Notes
(9) Document Patyk KA, Helm J, Martin MK, Forde-Folle KN, Olea-Popelka FJ, et al.: An epidemiologic simulatio… (2013)
Notes
(10) Document Dillon E, Matthews A, Thorne F: Foot-and-Mouth Disease control costs compared: An Irish case stu… (2007)
Notes

Application

Diseases
(1) Avian influenza A
(2) Foot-and-mouth disease
(3) Pseudorabies
Locations
(1) Location Denmark
Status current
(2) Location United States of America
Status current
(3) Location Thailand
Status current
(4) Location Ireland
Status current
(5) Location Missouri
Status
(6) Location Kansas
Status
(7) Location South Carolina
Status

Utility and readiness

Maintenance status

Active

Readiness

Configurable Generic Framework

Organizations
(1) Organization Colorado State University (CSU)
Role
(2) Organization University of Guelph
Role
(3) Organization United States Department of Agriculture (USDA)
Role
Independently tested

Unknown

Compared to model

Yes

Compared to reality

Unknown

Verification & validation notes

Validated the specific use of it to simulate the spread of Foot-and-Mouth disease by comparing the results to three different models. The results were consistent across the three models, implying that the key assumptions are suitable. Mathematically verified.

Availability

URL http://www.naadsm.org/about
URL (source code) http://www.naadsm.org/download
Availability notes

Need to be able to configure the generic framework to the specific situation being modeled by the user.

Input