A simple test called VirScan could reveal any viruses a person has ever had - all current and past infections, allowing for better diagnosis of disease rather than testing for specific viruses at a time. From just a single drop of blood, VirScan which was developed by Howard Hughes Medical Institute (HHMI) researchers, can detect the remains of more than 1,000 strains of 206 viruses that are infecting or have ever infected a patient, Discover reports via a Science study. The comprehensive analysis can be performed for about $25 per blood sample.
The test also revealed that adults around the world tend to have been infected by an average of 10 viruses over their lifetime. It could also be used to identify links between viral infections and mysterious diseases like chronic fatigue syndrome.
The journal ‘Science’ reported intriguing findings from their initial tests of 569 people they screened using VirScan in the United States, South Africa, Thailand and Peru. They found that the average person has been exposed to 10 of the 206 different species of known viruses -- though some people showed exposure to more than double that number.
But VirScan won’t be available to the public for a number of years; the FDA regulatory process requires validation through further experiments.
..... Devashree Goenka