In this issue, we look at life in space from several perspectives: how it began, where else it might be, and the physiological effects of space on humans and other organisms.
World Hepatitis Day takes place on Tuesday 28 July. Over 400 million people are living today with the hepatitis B or C virus, and 1.4 million die from the hepatitis virus each year. In this article, originally published in our Epidemics issue and updated in January 2015, we look at hepatitis C, an under-recognised but growing problem spread mainly through blood-to-blood contact.
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Each issue of 'Big Picture' comes with a sprinkling of Fast Facts, fascinating snippets of information on the topic covered.