Last night's BBC Horizon programme was on the subject of viruses. Pretty lighweight but the programme has over many years moved from a serious science programme to a more populist content. Whatever! The viruses covered included H1N1, the 'ones that appeal to undergrad med students' (Honta, Ebola) and HIV as the retovirus. Much discussion of how governments worldwide 'overestimated the likely threat of H1N1' but also how the worldwide health community could and should have been alerted when HIV was discovered in the 1950's. Then the usual dark murmurings about what other nasties might be lurking in the jungles of the Congo. But no mention whatsoever of XMRV! and the potential threat posed! What a pity.