Spreading phenomena are ubiquitous in nature and society. For example, disease and information spread over underlying social and information networks. It is well known that there is no threshold for spreading models on scale-free networks; this suggests that spread can occur on such networks, regardless of how low the contact rate may be. In this paper, I consider six models with different cont...

wheat streak mosaic virus (wsmv) causes extensive economic damage to wheat (triticum aestivum l.) in many regions of the world. the present study was conducted to find out if the variations in biochemical changes in reaction to wsmv infection in f2 generation of either potentially resistant (adl-cross) or susceptible (marvdasht) cultivars are genetically inherited. a factorial experiment was em...

Trypanosoma rangeli infects several triatomine and mammal species in South America. Its transmission is known to occur when a healthy insect feeds on an infected mammal or when an infected insect bites a healthy mammal. In the present study we evaluated the classic way of T. rangeli transmission started by the bite of a single infected triatomine, as well as alternative ways of circulation of t...

UNLABELLED Practical significance of understanding the dynamics and evolution of infectious diseases increases continuously in contemporary world. The mathematical study of the dynamics of infectious diseases has a long history. AIM By incorporating statistical methods and computer-based simulations in dynamic epidemiological models, it could be possible for modeling methods and theoretical a...

Abstract We study the extinction of epidemics in a generalized contact process, where a susceptible individual becomes infected with the rate λ when contacting m infective individual(s) simultaneously, and an infected individual spontaneously recovers with the rate μ. By employing WKB approximation for the master equation, the problem is reduced to finding the zero-energy trajectories in an eff...

Background: CClostridium difficile is an anaerobic gram-positive bacterium currently recognized as the most common cause of nosocomial infectious diarrhea in the nursing home. The antibiotic susceptibility profiles are the basic step to successful treatment due to the antimicrobial resistance. This present study assessed the susceptibility profiles of C. difficile, previously isolated from Elde...