The biodiversity effect in regulating the prevalence of Sin Nombre virus (SNV)




Sin Nombre Virus (SNV), Interspecific Interactions, Biodiversity


Sin Nombre virus (SNV), a virus that can cause fatal disease among humans, is primarily hosted by the deer mouse, Peromyscus maniculatus. To better understand the biodiversity effect in curbing the prevalence of the SNV infection in the deer mouse population, we analyze the Peixoto & Abramson (2006) “one host, one non-host alien” deterministic model. In this study, we focus on the relationship of carrying capacity and interspecific competition strength of both host and non-host species in relation to the prevalence of the infection. Bifurcation analysis is carried out to examine the dynamics of this eco-epidemiological system. Our results show that the non-host species have a certain degree of influence in suppressing the SNV prevalence, given that the environmental conditions are similar and the interspecific competition strengths are relatively weak between the host and non-host species.

Author Biographies

Lloyd Wen Feng Lee, Universiti Sains Malaysia (USM)

Postgraduate Master Student at School of Mathematical Sciences

Mohd Hafiz Mohd, Universiti Sains Malaysia (USM)

Lecturer in School of Mathematical Sciences


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