Estimation of the Rat Population and the Number of Leptospirosis Infectious Rats via the Degree of Infectious Spatial-Temporal Weighting (DISTW) Method

Ideris, Sufi Hafawati; Shaadan, Norshahida; Shair, Syazreen Niza; Samat, Nor Azah; Mohd-Taib, Farah Shafawati; Chee, Hui Yee; Rosli, Muhammad Zahin; Wong, Ping Wah

doi:10.1109/aiic54368.2022.9914588

Cited by 1 publication

(3 citation statements)

References 7 publications

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“…Due to lack of rat's data, the continuous-time and discrete-space of leptospirosis transmission corresponding to rat population and free-living leptospires in the environment are assumed to be non-stochastic as (24). After developing the transmission mechanism for each compartment, a stochastic model is constructed to provide the approximation of stochastic mean.…”

Section: Numerical Analysis Of Solutions For the Sir-l-si Differentia...mentioning

confidence: 99%

“…For i = 1, 2,…, M study regions and j =1, 2,…T time periods, the SIR-L-SI model including a probability distribution to reflect the inherent randomness in the data is derived in (23)(24)…”

Section: Numerical Analysis Of Solutions For the Sir-l-si Differentia...mentioning

confidence: 99%

“…To complete the data set for the analysis, infected rats number is approximated based on weightage method. This approximation involves the estimation of total rat population and total infected rats, which is discussed further in Ideris et al [24]. This estimation of data set or variables assumptions involved in this model-based study may influenced by various uncontrolled confounding such as unobserved environmental and covariate factors which difficult to measure.…”

Section: Data Setmentioning

confidence: 99%

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Leptospirosis Relative Risk Estimates based on Continuous-Time, Discrete-Space Stochastic SIR-L-SI Transmission Model

Ideris,

Shaadan,

Niza Shair

et al. 2024

Mal. J. Fund. Appl. Sci.

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Leptospirosis is a re-emerging global disease that has become endemic in Malaysia. The transmissions usually occur between animals especially rats to rats and rats to humans. Since, it is an easily contractable disease that can be transmitted directly through contact with infected rat’s urine or indirectly from the environment such as via water and soil, it is very challenging to curb this disease from infecting humans. Poor understanding of the disease and lack of epidemiological data also made leptospirosis is difficult to control. To cope with this problem, a leptospirosis disease transmission model is developed to study the mechanism of leptospirosis disease spread over continuous-time that may help to predict future caused of an outbreak. This study aims to construct a continuous-time and discrete-space stochastic SIR-L-SI (Susceptible, Infected, Recovered Humans-Leptospires in the Environment-Susceptible, Infectious Rats) of leptospirosis disease transmission to estimate the risk involved. A simple method of asymptotic and numerical analyses is applied as an alternative approach for solving simultaneous differential equations in the leptospirosis SIR-L-SI transmission model. The application of the proposed model is demonstrated using leptospirosis data for Malaysia. The results of asymptotic behaviour and numerical analysis provide useful information about susceptible and infective rat and human populations as well as offer relative risk estimates that can be used as one of the control measures in identifying hot-spot areas for this disease.

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Section: Numerical Analysis Of Solutions For the Sir-l-si Differentia...mentioning

confidence: 99%

Section: Numerical Analysis Of Solutions For the Sir-l-si Differentia...mentioning

confidence: 99%

Section: Data Setmentioning

confidence: 99%

See 1 more Smart Citation

Leptospirosis Relative Risk Estimates based on Continuous-Time, Discrete-Space Stochastic SIR-L-SI Transmission Model

Ideris,

Shaadan,

Niza Shair

et al. 2024

Mal. J. Fund. Appl. Sci.

View full text Add to dashboard Cite

show abstract

Estimation of the Rat Population and the Number of Leptospirosis Infectious Rats via the Degree of Infectious Spatial-Temporal Weighting (DISTW) Method

Cited by 1 publication

References 7 publications

Leptospirosis Relative Risk Estimates based on Continuous-Time, Discrete-Space Stochastic SIR-L-SI Transmission Model

Leptospirosis Relative Risk Estimates based on Continuous-Time, Discrete-Space Stochastic SIR-L-SI Transmission Model

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