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WHO publishes viral hepatitis surveillance guide.

Viral hepatitis is a global public health problem of epidemic proportions and according to the Global Burden of Disease study [2], it causes approximately 1.46 million deaths each year. New infections caused by the five known hepatitis viruses – A, B, C, D and E (HAV, HBV, HCV, HDV and HEV) can be prevented; however, this relies on surveillance systems generating epidemiological information which is key in preventing and controlling hepatitis epidemics.