Related Experiment Videos
Acquired immunity on a schistosomiasis transmission model - fitting the data
H M Yang1, F A Coutinho, E Massad
1Universidade Estuadual de Capinas, IMECC-Depart. Mat. Aplicada, Caixa Postal 6065, CEP: 13081-970, Campinas, S.P., Brazil. hyunyang@ime.unicamp.br
Journal of Theoretical Biology
|February 21, 1998
Summary
This study introduces a new model to understand how acquired immunity affects schistosomiasis transmission in humans. The model accurately reflects real-world data from Brazil and Tanzania, aiding schistosomiasis control strategies.
Area of Science:
- Parasitology
- Immunology
- Mathematical modeling
Background:
- Schistosomiasis is a significant parasitic disease affecting millions globally.
- Understanding the role of host immunity in disease transmission is crucial for effective control.
Purpose of the Study:
- To develop and analyze a semi-stochastic model for schistosomiasis transmission.
- To investigate the impact of acquired immunity on disease dynamics within the human host.
Main Methods:
- A semi-stochastic mathematical model was formulated.
- The model incorporates acquired immunity developing after a fixed period (L) post-infection.
- Immunity is partially effective and permanent; infection events follow a Poisson process.
- Human host age distribution is treated deterministically.
Main Results:
- The model demonstrates a capacity to accurately retrieve real-world schistosomiasis data.
- Validated against data from Touros, Brazil (Schistosoma mansoni) and Misungwi, Tanzania (Schistosoma haematobium).
Conclusions:
- The proposed model provides a valuable tool for analyzing schistosomiasis transmission dynamics.
- It highlights the importance of acquired immunity in understanding disease persistence and control.