coronavirus earlier this year, some countries and U.S. states are trying more targeted measures as cases rise again around the world, especially in Europe and the Americas.New York’s new round of virus shutdowns zeroes in on individual neighbourhoods, closing schools and businesses in hot spots measuring just a couple of square miles.Spanish officials limited travel to and from some parts of Madrid before restrictions were widened throughout the capital and some suburbs.Italian authorities have sometimes quarantined spots as small as a single building.