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At the European Conference of Clinical Microbiology & Infectious Diseases (ECCMID) this year in Copenhagen, Denmark, data on a test that may detect HIV, hepatitis B, and hepatitis C from a single drop of blood are being presented. Hepatitis B or C claim the lives of over a million people each year. Every year, 1.5 million individuals contract HIV, and 650,000 people pass away from HIV-related causes. The World Health Organisation has made the elimination of all three viruses by 2030 one of its global health strategies but new tests are necessary if case numbers are to be reduced. The most common test for hepatitis B, hepatitis C and HIV involves taking a blood sample from a vein using a needle. While this method works extremely well, there is a potentially large reservoir of the three conditions in places where this method is not suitable. This could be prisons, drug rehabilitation centres and homeless shelters, where the taking of venous blood samples isn't always suitable or countries in which the shipping and refrigerated storage of blood samples can be challenging. Alternatives include dried blood spot tests, in which a single spot of blood is tested for nucleic acid from the three viruses.