The coronavirus has claimed 10 lives in Nevada, including the first person younger than 50. The four new deaths confirmed Thursday were the most in a single day. They included a man from Clark County in his 30s with underlying medical conditions, according to the Southern Nevada Health District. Another Clark County man in his 60s was the first victim in Nevada with no known underlying medical conditions. There are 420 cases of coronavirus statewide. All 10 deaths have occurred in the Las Vegas area, with the first confirmed on March 16.