CBC - Details on the new discovery Biointerfaces Institute

A team of researchers at McMaster University has developed a new diagnostic test that would tell patients in the span of a House episode if they’re suffering from a virus or bacterial infection, or possibly a malignant tumour, all based on a drop of sweat or saliva and a small piece of dried pulp.

The test features a dose of reactive material — the reagent — printed on a strip of litmus-like paper that changes colour to indicate the presence of the DNA sequence for a specific disease.

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