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A new blood test can find just about every virus you ever caught — in a single drop of blood.

Doctors are hoping the test might be used to find out whether viruses might cause a range of chronic diseases such as diabetes or heart disease, and to see whether infections early in life can affect your immunity later.... Read More - http://www.ms-uk.org/bacteriaandviruses

its early days still, and they are clearly having some issues with accuracy which is where a tests value lies.

Elledge's team says the test could easily be expanded to include other human pathogens such as bacteria, fungi, and protozoa. The test might also be used to find out if there are consequences of being infected with two or more particular viruses.

Lyme & EBV comes to mid.