A mathematical model is proposed that describes the colonization of host tissues by a contagious pathogen and the early nonspecific immune response, the impact of the infection on the performances of the host, and the spread of the infection in the population. The model obeys specific biological characteristics: Susceptible hosts are infected after contact with an infected one. The number of pa...

this study was carried out of determine the prevalence of intestinal parasites and effects of some demoghraphic factors on the central district of Kerman city.in this study ,2104 stool samples were randomly collected(1219 specimens from urban areas and 885 from the surrounding villages of Kerman city) in 1991.the samples were examined by formalin-ether concentration method.the results showed th...

  Background: The spread of pathogenic microorganisms in food and beverage and their resistance to antibiotics have raised major concerns for public health. The aim of this study was to investigate the antimicrobial activity of various metal oxide nanoparticles (NPs) including zinc oxide (ZnO), magnesium oxide (MgO), and iron oxide (Fe2O3) NPs against Staphylococcus aureus (S. aureus) and Esch...

Although each statistical unit on which measurements are taken is unique typically there is not enough information available to account totally for its uniqueness. Therefore heterogeneity among units has to be limited by structural assumptions. One classical approach is to use random effects models, which assume that heterogeneity can be described by distributional assumptions. However, inferen...

Auricularia auricula, one of the most important edible mushrooms, is affected heavily by Trichoderma. We collected diseased samples from main A. auricula cultivation regions to characterize pathogen and study effect Trichoderma spp. on species. identified species, T. pleuroticola, based internal transcribed spacer morphology characteristics, two types strains, Heiwei 15 (HW 15) Hei 29 (H 29), w...

conclusions the study results showed that stimulation of the american cockroach’s immunity system lead to production of antibacterial proteins and peptides which had inhibitory effect on the bacteria, depending on the bacterial strains and their sensitivity. likely this feature of insects can be used as therapeutic strategies to produce natural antimicrobial compounds against the pathogenic bac...