US stocks close mixed as investors weigh jobless-claims data and a resurgence in virus cases

· *US stocks closed mixed on Thursday as investors reacted to a resurgence of coronavirus cases.*
· *Texas, North Carolina, and Arizona this week reported record numbers of COVID-19-related hospitalizations, while China is grappling with its worst outbreak since the initial one in Wuhan.*
· *US weekly jobless claims hit 1.5...