NEW YORK: New York's Metropolitan Opera said on Wednesday (Thursday in Manila) it will demand that all musicians and audiences have received a booster dose of the Covid-19 vaccine, as the contagious Omicron variant spreads. With 3,000 people employed every day, from the orchestra to the technical teams, 'our population is far larger than any other not-for-profit performing arts organization in the country, which is why we have to be in the vanguard of health and safety,' said Peter Gelb, the Met's general manager. The opera had to close for a year and a half because of the pandemic, which hit New York City hard and early.