LONDON (Reuters) – U.S. biotech firm Moderna will build a new research and manufacturing centre in Britain to develop vaccines against new COVID-19 variants and other illnesses, the government said on Wednesday. Moderna’s COVID-19 vaccines, which use messenger RNA (mRNA) technology, were among those deployed in Britain, with Prime Minister Boris Johnson hailing the roll-out as one of the keys to re-opening England’s economy from stringent lockdowns. Britain’s health ministry said that the pandemic had shown mRNA technology as one of the fastest routes to develop new vaccines, and could be appl…