In this study 130 bulk tank milk samples which were delivered to the Pegah Pasturisation Factory inMashhad were collected randomly during the summer months. Samples were firstly enriched in modifiedtrypticase soy broth containing novobiocin, followed by plating onto sorbitol MacConkey agar supplementedwith cefixime and potassium tellurite for isolation of Escherichia coli O157:H7. Consequently ...

OBJECTIVES In order to develop a multiplex RT-PCR assay using the GeXP analyser for the simultaneous detection of four different NA serotypes of H5-subtype AIVs, effective to control and reduce H5 subtype of avian influenza outbreak. DESIGN Six pairs of primers were designed using conserved and specific sequences of the AIV subtypes H5, N1, N2, N6 and N8 in GenBank. Each gene-specific primer ...

Objective(s) Amongst the various antibiotic resistant elements in Vibrio. cholerae, SXT constin (SXT-C) is important. We were going to design a quick method for determination of antibiotic resistance gene pattern in SXT-C. Materials and Methods Ninety four V. cholerae O1El Tor isolates were used in this study. Antibiotic susceptibility testing, multiplex PCR amplification of SXT-C containing...

A multiplex snapback primer system was developed for the simultaneous detection of JAK2 V617F and MPL W515L/K mutations in Philadelphia chromosome- (Ph-) negative myeloproliferative neoplasms (MPNs). The multiplex system comprises two snapback versus limiting primer sets for JAK2 and MPL mutation enrichment and detection, respectively. Linear-After exponential (LATE) PCR strategy was employed f...

Rapid and accurate identification of Streptococcus pneumoniae is important for appropriate and prudent antimicrobial use in the treatment of lower respiratory tract infection. It is difficult to separate S. pneumoniae from commensal viridans group streptococci either by classical techniques or molecular methods. Aim of this study was to compare a commercially available multiplex PCR assay Seepl...

We describe a multiplex PCR assay for the detection of bcr-abl fusion mRNA in Philadelphia chromosome positive acute lymphoblastic leukemia (Ph + ALL). The assay provides a quick method for screening p190 (e1:a2) and p210 (b2:a2 or b3:a2) bcr-abl mRNAs simultaneously. The assay proves to be highly sensitive with detection of as little as one positive bcr-abl-expressing cell in a background of 1...

A multiplex PCR was developed to detect the coagulase gene (coa; pathognomic of Staphylococcus aureus) and the mecA gene (characteristically encoding for methicillin resistance in staphylococci) in a single, rapid test. Suitable primers for the gene targets and an internal, amplification control were incorporated into a multiplex PCR assay, which was then optimized on a capillary air thermal cy...

AIMS To develop a rapid multiplex PCR method for simultaneous detection of five major foodborne pathogens (Staphylococcus aureus, Listeria monocytogenes, Escherichia coli O157:H7, Salmonella Enteritidis and Shigella flexneri, respectively). METHODS AND RESULTS Amplification by PCR was optimized to obtain high efficiency. Sensitivity and specificity assays were investigated by testing differen...

A multiplex PCR assay for the simultaneous detection of Mycobacterium tuberculosis and Pneumocystis jirovecii was developed using IS6110-based detection for M. tuberculosis and mitochondrial large-subunit (mtLSU) rRNA gene detection for P. jirovecii. Ninety-five pulmonary blinded samples were examined using the developed multiplex PCR assay, and the results were compared with those obtained by ...