objective: hepatitis c virus is the major cause of viral hepatitis and its diagnosis in suspected specimens is of great importance. the risk of transfusion- transmitted virus infection is primarily the result of failure in serological screening tests to detect recently infected donors in the pre-seroconversion window period of infection. therefore, sensitive and accurate diagnosis of hcv prior ...

Human rhinoviruses (HRVs) are positive-stranded RNA viruses belonging to the Enterovirus genus in the family of Picornaviridae. Identification of the specific strain in HRV disease has been difficult because the traditional serological method is insensitive, labor intensive, and cumbersome. With the fast progress in molecular biological technique, more sensitive and faster molecular methods hav...

The use of reverse transcription (RT) PCR for relative quantitation of gene transcripts relies on the reproducibility of the individual RT, PCR and product measurement steps. Semi-competitive RT-PCR (RT-cPCR) uses an internal competitor template in the PCR step to improve quantitation. We have surveyed the reproducibility of RT, PCR, RT-cPCR and measurement, amplifying the glyceraldehyde-3-phos...

ObjectiveTo screen pregnant women at risk of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection during delivery using reverse-transcription polymerase chain reaction (RT-PCR) test and serum immunoglobulin (Ig) testing.MethodBetween March 31 st August 2020, consecutive admitted for labor in a single hospital were screened SARS-CoV-2 with nasopharyngeal RT-PCR swab tests detec...

background and objectives : each year, enteroviruses infect millions of people and cause different diseases. the agents are usually detected using cell culture. rd (rhabdomyosarcoma) and l20b (l cells) are among the recommended cells by the world health organisation (who) for this purpose. even though cell culture is the most common method used in diagnosing enteroviruses in stool specimens, th...

human growth hormone (hgh) genomic sequence containing 5 exons and 4 introns was cloned in pcdna-3 and the constructed plasmid was subsequently used for transfection ofnlli-3t3 cell line using lipofection technique. expression of hgh in stably transfected cells was assayed using elisa. total rna was extracted from transfected cells and hgh cdna was amplified by rt-pcr using specific primers. th...