The pandemic COVID-19 needs a rapid microbiological diagnostic from Clinical Microbiology Units. Due to the fact that it is done by using reverse transcription polymerase chain reaction (rRT-PCR) previous RNA extraction and automated equipment reagents for represent an economic increase diagnosis, we describe easy, cost-effective fast alternative extraction-free SARS-CoV-2. Samples were treated...

Fast and inexpensive identification of epidemiological links between limited number of Mycobacterium tuberculosis strains is required to initially evaluate hospital outbreaks, laboratory crosscontaminations, and family or small community transmissions. The ligation-mediated PCR methods (LM-PCR) appear sufficiently discriminative and reproducible to be considered as a good candidate for such ini...

The most widely accepted methods for accurate quantitative detection of genetically modified organisms rely on real-time PCR. Various detection chemistries are available for real-time PCR. They include sequence-unspecific DNA labeling dyes such SYBR-Green I and the use of both universal (e.g., AmpliFluor) and sequence-specific double-labeled probes, the latter comprising hybridization (e.g., Mo...

OBJECTIVES Ancillary molecular testing on tissue is available for mycobacterial disease; however, judicious use of highly sensitive tests, such as polymerase chain reaction (PCR) and sequencing, should be guided by histologic parameters. We sought to investigate the utility of performing acid-fast stains (AFS) on skin biopsy specimens with granulomatous inflammation without an otherwise obvious...

Aberrant hypo-methylation of DNA is evident in a range of human diseases including cancer and diabetes. Development of sensitive assays capable of detecting traces of un-methylated DNA within methylated samples can be useful in several situations. Here we describe a new approach, fast-COLD-MS-PCR, which amplifies preferentially un-methylated DNA sequences. By employing an appropriate denaturati...