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Lab Diagnosis of Viral Disease

COVID-19 antigen testing devices
Lab Diagnosis of Viral Disease

Antigen Testing for COVID-19: Principle, Procedure, Results and Interpretations

November 23, 2020 Acharya Tankeshwar 1

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 […]

Cytopathic effects
Lab Diagnosis of Viral Disease

Cytopathic effect (CPE) of Viruses: Types with Examples

June 15, 2020 Acharya Tankeshwar 0

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 […]

Embroyonated Egg culture for Viruses
Lab Diagnosis of Viral Disease

Embroyonated Egg Cultures for Viruses

June 5, 2020 Acharya Tankeshwar 0

Embroyonated 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 10-11 days and are incubated […]

SARS-Cov-2-IgG-IgM-procedure-and-interpretation
Lab Diagnosis of Viral Disease

SARS-CoV-2 IgG/IgM Rapid Test for the diagnosis of COVID-19

April 14, 2020 Acharya Tankeshwar 0

SARS-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 COVID-19. The SARS-CoV-2 IgG/IgM rapid […]

Immunochromatography test
Immunology

Immunochromatography: Principle and Uses

March 25, 2020 Acharya Tankeshwar 3

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) […]

Viral Transport Medium (VTM)
Lab Diagnosis of Viral Disease

Viral Transport Media (VTM): Preparation and Uses

March 23, 2020 Acharya Tankeshwar 3

Viral 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 hours at room or refrigerated […]

Immunology

Antigens in disease diagnosis

October 22, 2019 Acharya Tankeshwar 0

Detection 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 mainstay for the rapid diagnosis […]

Lab Diagnosis of Viral Disease

Animal Cell Culture: Introduction, Types, Methods and Applications

September 10, 2017 Srijana Khanal 3

Cell 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 which is quite simple compared […]

Immunology

Western Blot Technique: Principle, Procedures and Uses

May 12, 2017 Bina Bhandari 6

The 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 for transferring DNA, Northern blot […]

Lab Diagnosis of Viral Disease

Laboratory Diagnosis of Dengue Viral Infection

February 23, 2016 Acharya Tankeshwar 3

Dengue 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. Laboratory diagnosis method for confirming […]

No Picture
Lab Diagnosis of Viral Disease

Monospot test: Principle, Procedure, Accuracy and Uses

March 10, 2015 Acharya Tankeshwar 0

Monospot 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, serum or plasma is taken […]

Lab Diagnosis of Viral Disease

Japanese Encephalitis (JE) Virus: Structure, life cycle, pathogenesis and diagnosis

February 15, 2015 Acharya Tankeshwar 0

Japanese Encephalitis (JE) virus was initially isolated in Japan in 1935. It is a leading cause of vaccine-preventable encephalitis (inflammation of the brain) in Asia and the western Pacific. The virus is maintained in an […]

Posts navigation

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  • Carba NP test result
    Carba NP Test (CNPt): Principle, Procedure and Results
    February 4, 2021 1
  • Dermatophyte Test Medium Culture Plate
    Dermatophyte Test Medium (DTM): Composition, Preparation, and Uses
    January 30, 2021 0
  • Various types of viruses
    5 Most Dangerous Viral Infections In History
    December 15, 2020 0
  • COVID-19 antigen testing devices
    Antigen Testing for COVID-19: Principle, Procedure, Results and Interpretations
    November 23, 2020 1
  • RNA vaccine technology
    mRNA Vaccine: What it is and How it works?
    November 19, 2020 4

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