A buffer solution acts as the carrier for the sample, allowing it to flow along the test strip. It also [...]
Have you heard of Bayes Theorem? Which means most positive results for ANY test might be false?
We've checked! No cross-reaction with human coronavirus HKU1 and NL63, influenza virus A H1N1 (2009), seasonal H1N1, H3N2, H5N1, H7N9, [...]
There are actually three ways the accuracy of diagnostic tests is measured. How likely are they (%) to diagnose someone [...]
In simple terms the test cassette contains specially-engineered proteins (antibodies) that attach to the SARS-CoV-2 nucleoprotein (if it's present in [...]
Since SARS-CoV-2 was first sequenced in January 2020 the testing market has burgeoned. Few people realise no mass tests [...]
LoD is the lowest detectable amount of the test target that a test can reliably distinguish from zero. It is a very important number,
Immunofluorescence Assays use antibodies with a fluorescent marker to bind to a target (here the SARS-CoV-2 n-protein) which can then be read by a detector
The Ct or threshold cycle value is the number of amplification cycles a PCR test needs to perform before a sample shows a positive result.
An antigen is any substance that causes your immune system to produce antibodies against it.