Comparison of epidemic and endemic group G streptococci by restriction enzyme analysis.

CLONING AND EXPRESSION OF LEISHMANOLYSIN GENE FROM LEISHMANIA MAJOR IN PRIMATE CELL LINES

Leishmanolysin is a worldwide disease that is caused by different species of the genus Leishmania. Leishmanolysin, One of the genes expressed by Leishmania, appears to be an ideal candidate for genetic vaccination. In this study, a full length sequence, which encodes Leishmanolysin functionally critical regions (amino acids 100-579), was cloned from a Leishmania strain endemic to Iran. Analysis...

Dynamics of a Delayed Epidemic Model with Beddington-DeAngelis ‎Incidence Rate and a Constant Infectious Period

In this paper, an SIR epidemic model with an infectious period and a non-linear Beddington-DeAngelis type incidence rate function is considered. The dynamics of this model depend on the reproduction number R0. Accurately, if R0 < 1, we show the global asymptotic stability of the disease-free equilibrium by analyzing the corresponding characteristic equation and using compa...

Characterization of Avian Pasteurella multocida Isolates by Protein Profiles and Restriction Enzyme Analysis of Chromosomal DNA

Salivary cortisol and mutans streptococci in saliva of abuse substance patients

Introduction & Objective: The aim evaluate the relationship between salivary cortisol and viable count of mutans streptococci. in abuse patient.by using cobass device to determine level of salivary cortisol in two group and count colony of bacteria mutans streptococci (CFU/ml) by identification and culturing method. Methods: This study included a sample of 86 participants  aged 17–30 years old...

ON THE STABILITY AND THRESHOLD ANALYSIS OF AN EPIDEMIC MODEL

We consider a mathematical model of epidemic spread  in which the  population  is partitioned  into five compartments of susceptible S(t), Infected I(t), Removed R(t), Prevented U(t) and the Controlled W(t). We assume each of the compartments comprises of cohorts of individuals which are  identical with respect to the disease status. We derive five systems of equations to represent each of the ...