Virus clusters swell on both sides of US

Alarming clusters of the coronavirus swelled on both coasts of the U.S. on Tuesday, with 70 cases now tied to a biotech conference in Boston and infections turning up at 10 nursing homes in the hard-hit Seattle area.

Presidential candidates Bernie Sanders and Joe Biden abruptly canceled rallies because of worries about the virus, and New York’s governor announced he is sending the National Guard to scrub public places and deliver food in a New York City suburb that is at the center of the nation’s

biggest known cluster of infections.

Massachusetts Gov. Charlie Baker declared a state of emergency as cases statewide jumped by 51 from the day before, to 92. Of that number, 70 are now connected to a meeting held last month by biotech company Biogen at a hotel in downtown Boston.

Baker said the state of emergency will give him greater authority to take such actions as shutting down large events, gaining access to buildings or stockpiling protective gear.

The moves came as the battle to stop the virus from spreading intensified. More schools and universities sent students home, while conferences and other events were canceled. The United Nations announced it would close its New York headquarters to the public and suspend all tours.

The Coachella music festival that draws tens of thousands to the California desert near Palm Springs every April was postponed until October. And one of the biggest resort operators in Las Vegas, MGM Resorts International, said it would close buffets at all of its Las Vegas Strip casinos as a precaution.