The SARS-CoV-2 viral antigen is generally detectable in nasopharyngeal swab specimens during the acute phase of infection. Most of the currently available antigen testing devices for the diagnosis of COVID-19 relies on qualitative detection of […]
Visible morphological changes in cell cultures caused by viral infections is called cytopathic effects (CPE). The degree of visible changes to cells caused by viral infection varies with the type of virus, type of host […]
Last updated on June 13th, 2020Embroyonated chicken eggs are used for the cultivation of some viruses. The viruses grow in the cells of the embryo and membranes. Specimens are inoculated into pathogen-free fertilized eggs of […]
Last updated on October 9th, 2020SARS-CoV-2 IgG/IgM rapid test is a lateral flow immunoassay intended for the qualitative detection of IgM and IgG antibodies to SARS-CoV-2 in the blood (serum, plasma) from patients suspected of […]
Immunochromatography is a combination of chromatography and immunoassay. This technology is in use to a wide array of tests for clinical, veterinary, and industrial applications. Depending on the assay, either antigen (for detection of antibody) […]
Last updated on April 5th, 2020Viral Transport Media (VTM) are suitable for collection, transport, maintenance and long-term freeze storage of clinical specimens containing viruses, chlamydia, mycoplasma or ureaplasma organisms. It maintains organism viability for 48 […]
Last updated on June 9th, 2020Detection of specific antigens present in the sample (blood, urine, CSF or stool) using immunologic methods such as precipitin tests, particle agglutination tests, immunofluorescence, immunochromatographic or enzyme immunoassays are the […]
Last updated on June 13th, 2020Cell culture refers to the process by which cells are grown in a controlled artificial environment. Cells can be maintained in vitro outside of their original body by this process […]
Last updated on March 25th, 2020The term “blotting” refers to the transfer of biological samples from a gel to a membrane and their subsequent detection on the surface of the membrane. Southern blot is used […]
Last updated on September 25th, 2019Dengue and dengue hemorrhagic fever (DHF) are mosquito-borne viral disease caused by dengue virus, an Arbovirus (Arthropod borne Virus). It is transmitted via the bite of infected female Aedes aegypti mosquito. […]
Last updated on May 3rd, 2021Monospot test is a form of the heterophile antibody test which is used for the rapid screening of infectious mononucleosis (mono). Epstein–Barr virus (EBV) causes the disease infectious mononucleosis. Blood, […]
Last updated on April 30th, 2021Japanese Encephalitis (JE) virus was initially isolated in Japan in 1935. It is a leading cause of vaccine-preventable encephalitis (inflammation of the brain parenchyma) in Asia and the western Pacific. […]
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