LONDON : British Prime Minister Boris Johnson told people on Tuesday to work from home where possible and ordered bars and restaurants to close early to tackle a fast-spreading second wave of COVID-19 with new restrictions lasting probably six months.After scientific warnings that deaths could soar without urgent action, Johnson stopped short of another full lockdown as he did in March, but warned that further measures could come if the disease was not suppressed."We reserve the right to deploy greater firepower, with significantly greater restrictions," he told parliament following emergency meetings with ministers and leaders of the United Kingdom's devolved governments.Just weeks after urging people to start returning to workplaces,.