نتایج جستجو برای: infection rate
تعداد نتایج: 1364432 فیلتر نتایج به سال:
background: zoonotic cutaneous leishmaniasis (zcl) is an expanding disease and public health problem in iran. in the current study, natural leishmania infection rate and seasonal fluctuation of the infection in rhombomys opimus population of a hyperendemic focus of zcl in iran was investigated. methods: the study was conducted from october 2006 to october 2008 in esfahan province, central par...
Seven hundred and sixty-eight blood samples of pregnant cattle from four Holstein dairy herds that are farmed in the vicinity of Tehran were used to evaluate the seroprevalence of Neospora caninum infection by enzyme-linked immunosorbent assay (ELISA). Two hundred and ninety-eight of the 768 blood samples (38.8%) were positive for this infection. The prevalence of infection in the herds varied ...
Introduction: Human Cytomegalovirus (HCMV) or Human Herpes Virus Type-5(HHV-5) is a member of herpesviridae placed in subtype beta herpesvirinae. CMV is a ubiquitous pathogenic virus and can infect humans all through their life. Prevalence of CMV infection in developed countries is about 45% and in developing countries it varies up to 100%. CMV infection during pregnancy is very important, beca...
susceptibility of date palm cultivars to natural infestation by oligonychus afrasiaticus in behbehan
oligonychus afrasiaticus mcg is a key pest on kabkab and khasi date cultivars in behbehan. this research was conducted based on randomized complete block designs with 9 cultivars and 3 replications in behbehan agricultural research station during 2008 and 2009. the main idea of the investigation was the response assessment of these cultivars to the spider mite. the cultivars included kabkab, kh...
the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis , a one- way anova experimental design was carried out. 24 senior student of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inte...
Background and purpose: Helicobacter pylori(HP) has an important role in the pathogenesis of gastritis, peptic ulcer and gastric cancer. The eradication of HP results in the prevention of the recurrence of peptic ulcer and its complications. In developed countries, the recurrence of infection is unusual and rare after the successful eradication of HP infection, however it is likely in develop...
cryptosporidium is an important cause of illness in farm animals. the present study conducted in kerman, iran between 2003-2004 to elucidate the epidemiology of cryptosporidium infection in sheep and goats. fecal samples were collected fresh and transferred to the research lab. cryptosporidium oocysts were concentrated using formalin-ether sedimentation method followed by the modified ziehl-nee...
Cryptosporidiosis is one the reasons of diarrhea between children in the world. The prevalence of cryptosporidium in children is more than adult. This research is effective for studying of prevalence of this disease in students of elementary schools in the west of Tehran(aged 6 to 12 years) In this study 3 fecal samples preserved in 10% formalin, were collected from 500 children. Oocyst ...
In this study we have proposed the SIAQR model with time-dependent infection rate. The model’s well-posedness is demonstrated, and then extended to fractional mathematical by employing Caputo-Fabrizio derivative operator. We also used Lipschitz condition linear growth determine conditions under which has a unique solution. numerical solutions are presented. Furthermore, using graphical represen...
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