background lung cancer is one of the most common causes of death worldwide. although smoking and environmental pollutants are the most important risk factors of lung cancer, the role of infectious causes should also be considered in the pathogenesis and progress of lung cancer. objectives this study examined the relationship between helicobacter pylori and lung cancer through serology, real-tim...

The polymerase chain reaction (PCR) shortens conventional microbiological methods for the detection of food pathogens either by replacing the conventional biochemical and serological identification or by its direct use on pre-enrichment media or food products. PCR allows fast and highly reliable identification of bacterial taxa, particularly phenotypically atypical bacterial strains. For reliab...

Fasciolosis, caused by the trematode Fasciola hepatica, is a zoonosis of economic importance in livestock that is emerging as a chronic disease in humans. The intermediate hosts are lymnaeid snails, in which diagnosis of infection is traditionally based on cercarial shedding, tissue sectioning and crushing. We developed a PCR assay for the sensitive and specific detection of F. hepatica in fiel...

background: new cases of visceral leishmaniasis (vl) have been reported recently in some parts of mazandaran province, north of iran where the first human case of  vl was reported in 1949. this study aimed to determine the present status of leishmania infantum infection among humans and domestic dogs using serological and molecular methods in central parts of mazandaran province. methods: in th...

OBJECTIVE To improve the isolation rate and identification procedures for Haemophilus parasuis from pig tissues. DESIGN Thirteen sampling sites and up to three methods were used to confirm the presence of H. parasuis in pigs after experimental challenge. PROCEDURE Colostrum-deprived, naturally farrowed pigs were challenged intratracheally with H parasuis serovar 12 or 4. Samples taken durin...

This article contains data related to the research article entitled "Ultra-fast DNA-based multiplex convection PCR method for meat species identification with possible on-site applications" (Song et al., 2017 [1]). Direct PCR that does not require prior DNA extraction is critical for ultra-fast molecular detection of meat species. We successfully acquired DNA by swab sampling in Taq DNA polymer...

background: toxoplasma gondii is an intracellular parasite, which infects one-third population of world. humans and animals acquire infection by ingesting oocytes from feces of cats or by meat of other animals having cysts that may lead to congenital, ocular or cephalic toxoplasmosis. either it is important to detect t. gondii from meat of food animals from retail shops or directly at slaughter...

We describe the evaluation of culture-negative synovial fluid from a 3-year-old boy by PCR and electrospray ionization followed by mass spectrometry (PCR/ESI-MS). Our patient developed a diffuse rash and fever with systemic signs and symptoms of sepsis, but four sets of blood cultures obtained prior to initiation of antibiotics were negative. After 1 week of illness, he developed right-knee swe...

The following report describes the direct detection of Ehrlichia canis by real-time PCR in the conjunctiva of a 1-year-old female Maltese dog. After being imported from Brazil, the dog was presented because of anorexia, dehydration, fever, and palpable mandibular lymph nodes. A few days later, the dog developed bilateral blepharospasm, photophobia and anterior uveitis. Monocytic ehrlichia was d...

Clostridium difficile is a major cause of nosocomial antibiotic-associated infectious diarrhea and pseudomembranous colitis. Detection of C. difficile by anaerobic bacterial culture and/or cytotoxicity assays has been largely replaced by rapid enzyme immunoassays (EIA). However, due to the lack of sensitivity of stool EIA, we developed a multiplex real-time PCR assay targeting the C. difficile ...