If you are wondering what the different letters and numbers used to name influenza viruses mean, such as H1N1, H3N2, H5N1 and influenza A, B, C or D, you are probably not alone. The letters and ...
UK health officials have issued a list of 26 countries which have been hit by a virulent virus which spreads easily. In a warning to travellers, the UK Health Security agency is updating its ...