View Proposal #561
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| ID | 561 |
|---|---|
| First Name | Presley |
| Last Name | Kimball |
| Institution | Creighton University |
| Speaker Category | undergraduate student |
| Title of Talk | An ODE model of yaws elimination in Lihir Island, Papua New Guinea |
| Abstract | Yaws is a chronic infection that affects mainly the skin, bone, and cartilage and spreads mostly between children. The new approval of a medication as treatment in 2012 has revived eradication efforts and now only few localized foci of infection remain. The World Health Organization strategy mandates an initial round of total community treatment (TCT) with single-dose azithromycin followed either by further TCT or by total targeted treatment (TTT), an active case-finding and treatment of cases and their contacts. We develop the compartmental ODE model of yaws transmission and treatment for these scenarios. We solve for disease-free and endemic equilibria and also perform the stability analysis. We calibrate the model and validate its predictions on the data from Lihir Island in Papua New Guinea. We demonstrate that TTT strategy is efficient in preventing outbreaks but, due to the presence of asymptomatic latent cases, TTT will not eliminate yaws within a reasonable time frame. To achieve the 2030 eradication target, TCT should be applied instead. |
| Subject area(s) | Mathematical Models, Epidimiology |
| Suitable for undergraduates? | Y |
| Day Preference | SaturdayStrong |
| Computer Needed? | N |
| Bringing a laptop? | Y |
| Overhead Needed? | Y |
| Software requests | |
| Special Needs | |
| Date Submitted | 09/17/2021 |
| Year | 2021 |