Scientists may have cracked the code for the common cold. A cold is difficult to treat — let alone cure. There are hundreds of cold virus strains and they are highly adaptable, allowing them to quickly mutate and become resistant to drugs. Cold medications don’t target the virus and only help to ease symptoms, such as a sore throat, runny nose and cough. But researchers in the UK have identified the protein in human cells that the virus needs to copy itself. So rather than attack the virus, scientists (Imperial College London) have developed a way to block the protein that works against all strains. The research team is working on turning it into an inhaler-type treatment that could be taken at the first sign of the sniffles. Human trials could take up to two years.