By , LONDON (Reuters) - Britain approved Pfizer Inc’s COVID-19 vaccine on Wednesday, jumping ahead of the rest of the world in the race to begin the most crucial mass inoculation programme in history.Prime Minister Boris Johnson touted the green light from Britain’s medicine authority as a global win and a ray of hope for the end of the pandemic, though he recognised the logistical challenges of vaccinating an entire country of 67 million.Britain’s move raised hopes that the tide could soon turn against a virus that has killed nearly 1.5 million people globally, hammered the world economy...…By , LONDON (Reuters) - Britain approved Pfizer Inc’s COVID-19 vaccine on Wednesday, jumping ahead of the rest of the world in the race to begin the most crucial mass inoculation programme in history.Prime Minister Boris Johnson touted the green light from Britain’s medicine authority as a global win and a ray of hope for the end of the pandemic, though he recognised the logistical challenges of vaccinating an entire country of 67 million.Britain’s move raised hopes that the tide could soon turn against a virus that has killed nearly 1.5 million people globally, hammered the world economy...WW…