The objective of the current study was to evaluate the reproducibility of a reverse transcriptase PCR (RT-PCR)-based technique to differentiate viable and dead Salmonella cells in raw and sterilized milk. The microorganism was initially inoculated into the milk samples followed by incubating at 37°C for 4 h prior to inactivation by heat at 80°C for 10 min. The treated and non-treated samples we...

This study aims to characterize different Salmonella enterica subsp molecularly. strains (n=49) were isolated from human gastrointestinal cases in the Tolima region and poultry Santander regions using PCR-RFLP, PCR-ribotyping, PCR-SSCP. The band patterns obtained with each technique analyzed by building dendrograms based on Unweighted Pair Group Method Arithmetic mean (UPGMA) method Dice coeffi...

The polymerase chain reaction (PCR) is the most widely used technique for the study of DNA. Applications for PCR have been extended significantly by the development of "long" PCR, a technique that makes it possible to amplify DNA fragments up to 40 kb in length. This article describes two novel applications of the long PCR technique, one which simplifies restriction mapping and another which en...

objectives: malaria is the most important tropical disease in terms of morbidity and mortality. the diagnosis of malaria can be conveniently subdivided into clinical, parasitological, biochemical, serological and molecular biological detection. the objective of the present work was to compare two techniques, blood smear and pcr-rflp, for detection of plasmodium species. materials & method...