NEW YORK–(BUSINESS WIRE)–Spain’s largest cities are using GoAigua technology to test their population for COVID-19 spread. These cities have implemented a widespread surveillance system that is efficiently testing entire cities every day, at a neighborhood and building level, by detecting the virus in sewer systems. Spain was one of the first countries to be hard hit by the COVID-19 pandemic. Right behind Italy, Spain hit a record high of 100,000 cases in March 2020, and had to lock down its