The control of severe acute respiratory syndrome (SARS), a fatal contagious viral disease that spread to over 32 countries in 2003, was based on quarantine of latently infected individuals and isolation of individuals with clinical symptoms of SARS. Owing to the recent ongoing clinical trials of some candidate anti-SARS vaccines, this study aims to assess, via mathematical modelling, the potent...

background: unintentional drug intoxication is still a major cause of mortality and morbidity in young children. method & materials: in order to study changes of epidemiological indices of children intoxication during a 10-year period in hamadan province, all cases admitted to ghaem hospital from 1995-1999 were recruited, and compared with all cases admitted to the same hospital from 1990-1994....

evidence provided from studies in iran points to a possible bias in application of the standard epi cluster sampling procedure, when carried out in populations with highly variant birth rates, tends to over-represent the low birth rate, i.e. higher socio-economic, strata, and if the entity under study shows significant socio-economic gradient, then the estimates arrived at by this method might ...

In this paper, we propose an epidemic model with age-dependence vaccination, latency and relapse. We derive the positivity and boundedness of solutions and find the basic reproduction number. Asymptotic smoothness, the existence of global compact attractor and uniform persistence of the model are investigated. By constructing Lyapunov functionals, we establish global stability of the equilibria...

a clinical and epidemiological comparison of the cutaneous leishmaniasis was carried out among 100 victims of cutaneous leishmaniasis who were living in the villages of isfahan area, and 100 other patients of the lesions have been determined and analyzed. comparison of patients of the city with that of neighboring villages shows that both type of cutaneous leishmaniasis are prevalent in isfahan...