A lack of test kits for the new COVID-19 coronavirus is still obscuring the extent of the outbreak in the U.S., but for a critical period in February, there were no functional federal tests and "local officials across the country were left to work blindly as the crisis grew undetected and exponentially," The New York Times reports. The coronavirus has now infected more than 1,000 people in 36 states and Washington, D.C., according to Johns Hopkins University's count.The first U.S. outbreak was in Washington state, where authorities confirmed the first patient — suffering from respiratory problems after visiting Wuhan, China — only after the Centers for Disease Control and Prevention made an exception to strict testing criteria. In Seattle, Dr. Helen Chu, an infectious disease expert who was part of an ongoing flu-monitoring effort, the Seattle Flu Study, asked permission to test their trove of collected flu swabs for coronavirus.State health officials joined Chu in asking...