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A lateral flow test (LFT), is an assay also known as a lateral flow device (LFD), lateral flow immunochromatographic assay, or rapid test. It is a simple device intended to detect the presence of a target substance in a liquid sample without the need for specialized and costly equipment. LFTs are widely used in medical diagnostics in the home, at the point of care, and in the laboratory. For instance, the home pregnancy test is an LFT that detects a specific hormone. These tests are simple and economical and generally show results in around five to thirty minutes. Many lab-based applications increase the sensitivity of simple LFTs by employing additional dedicated equipment. Because the target substance is often a biological antigen, many lateral flow tests are rapid antigen tests (RAT or ART).
FIND, the global alliance for diagnostics is a global health non-profit based in Geneva, Switzerland. FIND functions as a product development partnership, engaging in active collaboration with over 150 partners to facilitate the development, evaluation, and implementation of diagnostic tests for poverty-related diseases. The organisation's Geneva headquarters are in Campus Biotech. Country offices are located in New Delhi, India; Cape Town, South Africa; and Hanoi, Viet Nam.
DiaSorin is an Italian multinational biotechnology company that produces and markets in vitro diagnostics reagent kits used in immunodiagnostics and molecular diagnostics and since July 2021, it is also active in the Life Science business. The group was founded in 2000 and is headquartered in Saluggia, Italy. Its production is at several plants located in Europe and the United States: Saluggia and Gerenzano (Italy), Dietzenbach (Germany), Stillwater, Minnesota (US), Dartford (UK). Following the acquisition of Luminex, the company acquired five additional production plants located in the USA and in Canada (Toronto). The company is a constituent of the FTSE MIB index.
A rapid antigen test (RAT), sometimes called a rapid antigen detection test (RADT), antigen rapid test (ART), or loosely just a rapid test, is a rapid diagnostic test suitable for point-of-care testing that directly detects the presence or absence of an antigen. Such tests are a type of lateral flow test that detect antigens, distinguishing them from other medical tests that detect antibodies or nucleic acid, of either laboratory or point-of-care types. Rapid tests generally give a result in 5 to 30 minutes, require minimal training or infrastructure, and have significant cost advantages. Rapid antigen tests for the detection of SARS-CoV-2, the virus that causes COVID-19, have been commonly used during the COVID-19 pandemic.
COVID-19 testing involves analyzing samples to assess the current or past presence of SARS-CoV-2. The two main types of tests detect either the presence of the virus or antibodies produced in response to infection. Molecular tests for viral presence through its molecular components are used to diagnose individual cases and to allow public health authorities to trace and contain outbreaks. Antibody tests instead show whether someone once had the disease. They are less useful for diagnosing current infections because antibodies may not develop for weeks after infection. It is used to assess disease prevalence, which aids the estimation of the infection fatality rate.
A COVID‑19 vaccine is a vaccine intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2), the virus that causes coronavirus disease 2019 (COVID‑19).
COVID-19 drug development is the research process to develop preventative therapeutic prescription drugs that would alleviate the severity of coronavirus disease 2019 (COVID-19). From early 2020 through 2021, several hundred drug companies, biotechnology firms, university research groups, and health organizations were developing therapeutic candidates for COVID-19 disease in various stages of preclinical or clinical research, with 419 potential COVID-19 drugs in clinical trials, as of April 2021.
The Access to COVID-19 Tools Accelerator, or the Global Collaboration to Accelerate the Development, Production and Equitable Access to New COVID-19 diagnostics, therapeutics and vaccines, is a G20 initiative announced by pro-tem Chair Mohammed al-Jadaan on 24 April 2020. A call to action was published simultaneously by the World Health Organization (WHO) on 24 April. As of January 2022, it was the largest international effort to achieve equitable access to COVID-19 health technologies.
Operation Moonshot was a UK government programme to introduce same-day mass testing for COVID-19 in England as a way of enabling large gatherings of people to take place in that country while maintaining control over the virus. According to the British Medical Journal, the programme aimed to deliver 10 million tests per day by 2021.
Casirivimab/imdevimab, sold under the brand name REGEN‑COV among others, is a combination medicine used for the treatment and prevention of COVID‑19. It consists of two human monoclonal antibodies, casirivimab and imdevimab that must be mixed together and administered as an infusion or subcutaneous injection. The combination of two antibodies is intended to prevent mutational escape. It is also available as a co-formulated product. It was developed by the American biotechnology company Regeneron Pharmaceuticals.
Abingdon Health is a British manufacturer of lateral flow assay diagnostic tests, sometimes called rapid tests, lateral flow immunoassays (LFIA), lateral flow tests (LFT) or quick tests. Since its formation in 2008, Abingdon Health has developed and manufactured lateral flow rapid tests across multiple industries. Headquartered in York UK, with an additional site in Doncaster UK, the company offers lateral flow product research and development, regulatory support, technical transfer and manufacturing services to a number of customers as well as developing its own range of tests.
The AbC-19 rapid antibody test is an immunological test for COVID-19 exposure developed by the UK Rapid Test Consortium and manufactured by Abingdon Health. It uses a lateral flow test to determine whether a person has IgG antibodies to the SARS-CoV-2 virus that causes COVID-19. The test uses a single drop of blood obtained from a finger prick and yields results in 20 minutes. The sensitivity of this test is 98.03% while the specificity is 99.56%. This test is paired with an easy-to-use mobile app which allows a trained professional to generate an antibody test certificate for storing on a person's smartphone.
The UK Rapid Test Consortium (UK-RTC) is a United Kingdom industry consortium created to produce a lateral flow rapid test for COVID-19. Rapid tests are a form of COVID-19 testing technology that was originally developed from significant investment by the United Kingdom government to develop new forms of COVID-19 testing that provided advantages over existing forms such as PCR. Its members include Abingdon Health, BBI Solutions, CIGA Healthcare, Omega Diagnostics, and Oxford University.
Bamlanivimab is a monoclonal antibody developed by AbCellera Biologics and Eli Lilly as a treatment for COVID-19. The medication was granted an emergency use authorization (EUA) by the US Food and Drug Administration (FDA) in November 2020, and the EUA was revoked in April 2021.
The COVID-19 Genomics UK Consortium (COG-UK) is a group of public health agencies and academic institutions in the United Kingdom created in April 2020 to collect, sequence and analyse genomes of SARS-CoV-2 as part of COVID-19 pandemic response. The consortium comprises the UK's four public health agencies, National Health Service organisations, academic partners and the Wellcome Sanger Institute. The consortium is known for first identifying the SARS-CoV-2 Alpha variant in November 2020. As of January 2021, 45% of all SARS-CoV-2 sequences uploaded to the GISAID sequencing database originated from COG-UK.
Curative Inc. is a healthcare startup company best known for scaling COVID-19 testing and COVID-19 vaccinations during the COVID-19 pandemic. Headquartered in San Dimas, California, and operating throughout the United States, the company was founded in January 2020 by Fred Turner, Isaac Turner, and Vlad Slepnev to create new diagnostic tests for sepsis and to improve outcomes for sepsis patients. In response to an urgent, unmet need for COVID-19 test development and production in the United States, Curative rapidly shifted focus in March 2020. The company's research team developed a new test for SARS-CoV-2 that utilized oral swabs rather than nasopharyngeal swabs. The Curative test was designed with a scalable process and opportunities to reduce healthcare worker exposure risk, and therefore the amount of personal protective equipment (PPE) used. An independent manufacturing and supply chain model was adopted to avoid competing with existing COVID-19 test companies for limited supplies and laboratory capacity.
The term variant of concern (VOC) for SARS-CoV-2, which causes COVID-19, is a category used for variants of the virus where mutations in their spike protein receptor binding domain (RBD) substantially increase binding affinity in RBD-hACE2 complex, while also being linked to rapid spread in human populations.
COVID-19 rapid antigen tests or RATs, also frequently called COVID-19 lateral flow tests or LFTs, are rapid antigen tests used to detect SARS-CoV-2 infection (COVID-19). They are quick to implement with minimal training, cost a fraction of other forms of COVID-19 testing, and give users a result within 5–30 minutes. RATs have been used in several countries as part of mass testing or population-wide screening approaches. Many RATs can be used for self-testing, in which an individual "collects their own specimen… and interpret[s] their test result themselves".
The United Kingdom's response to the COVID-19 pandemic consists of various measures by the healthcare community, the British and devolved governments, the military and the research sector.
References
- ↑ "Abingdon Health announces its latest expansion and additional manufacturing capacity". Lifescience Industry News. 18 June 2020. Retrieved 12 November 2020.
- ↑ "Government invests in UK-developed antibody tests from UK Rapid Test Consortium". GOV.UK. Retrieved 12 November 2020.
- ↑ Gill, Dipender; Ponsford, Mark J. (11 November 2020). "Testing for antibodies to SARS-CoV-2". BMJ. 371: m4288. doi: 10.1136/bmj.m4288 . ISSN 1756-1833. PMID 33315587.
- ↑ Symon, Ken (19 October 2020). "Medical diagnostics company signs deal on delivery of Covid-19 tests". businessInsider. Retrieved 12 November 2020.
- ↑ "Yorkshire developed Covid-19 test approved for use in North America | TheBusinessDesk.com". Yorkshire. 17 November 2020. Retrieved 13 April 2021.
