coronavirus cases.Prime Minister Boris Johnson will use a press conference later today (Wednesday) to announce the change in the law after the number of daily positive Covid-19 cases in the UK rose to almost 3,000.The legal limit on social gatherings will be reduced from 30 - which the law allowed if people were from no more than two households - to six.Groups of more than six can be broken up by police.The new rule will apply to gatherings indoors and outdoors - including private homes, parks,