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commercial test for covid-19 (SARS-CoV-2)
Virology

Testing Methods for COVID-19 (SARS-CoV-2)

April 2, 2020 Acharya Tankeshwar 0

Rapid collection and testing of appropriate specimens from patients meeting the suspected case definition for COVID-19 is a must for outbreak control and clinical management. Molecular testing is the current recommended method for the identification […]

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) […]

Structure of Coronavirus (SARS-CoV-2)
Structure of Virus

SARS-CoV-2: Properties, Transmission, and Prevention

March 24, 2020 Acharya Tankeshwar 1

SARS-CoV-2 is a novel virus that first appeared in Wuhan, China, in December 2019. It is a member of the Coronaviridae family, so named for their “crown-like” appearance. It is a large family of viruses […]

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 […]

Detection of SARS-CoV-2 for COVID-19
Virology

Rapid detection of SARS-CoV-2 and diagnosis of COVID-19

March 22, 2020 Acharya Tankeshwar 2

Cepheid, one of the leading molecular diagnostic companies, which is also the manufacturer of  GeneXpert System, has received emergency use authorization (EUA) from FDA for its rapid SARS-CoV-2 test kit. This automated molecular test for […]

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 […]

Bacteriophage plaque assay
Virology

Bacteriophage Plaque Assay: Principle, Procedure and Results

December 5, 2018 Acharya Tankeshwar 1

Bacteriophage “bacteria eaters” are infectious agents that replicate as obligate intracellular parasites in bacteria but in extracellular environment they are metabolically inert. A typical phage contains “head” (containing DNA embedded in a protein envelope), “neck”and […]

Virology

Respiratory Syncytial Virus (RSV): Replication and Pathogenesis

March 29, 2018 Acharya Tankeshwar 0

Respiratory Syncytial Virus (RSV), is a member of the Pneumovirus genus within the family Paramyxoviridae.  RSV usually causes mild, cold-like symptoms. Most people recover in a week or two, but RSV can be serious, especially for infants and older […]

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 […]

Virology

Gaëtan Dugas is free from blame of AIDS Patient Zero

November 4, 2016 Acharya Tankeshwar 0

Science is not perfect nor does all those breakthrough discoveries. Those beliefs that we have right now about a particular thing, person, event or discovery may change anytime soon, if a new research gives sufficient evidence […]

Virology

Baltimore system of Classifications of Viruses

June 30, 2016 Acharya Tankeshwar 4

The Baltimore system of virus classification devised by virologist & Nobel laureate David Baltimore is based on the genomic nature of the viruses. The central theme of the Baltimore system of virus classification is ‘all viruses must […]

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  • 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
  • Francisella tularensis basic feature
    Francisella tularensis: Properties, Pathogenesis, and Laboratory Diagnosis
    October 13, 2020 0
  • Burkholderia pseudomallei
    Burkholderia pseudomallei: Properties, Pathogenesis and Laboratory Diagnosis
    October 9, 2020 1

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