UK households are being put on high alert as the dreaded norovirus is sweeping Britain. According to the latest NHS figures, there has been a 29% spike in cases over the past month. If you find yourself suddenly struck by intense sickness, relentless vomiting and watery diarrhoea, chances are you've been hit with this highly infectious bug. Some people also suffer from fever, headaches , stomach cramps, and sore limbs. These unpleasant symptoms typically rear their ugly heads one to two days