On March 3 , during the pandemic , Arizona reported its first coronavirus case in Maricopa County .
New Hampshire officials announced the state 's first case , an employee with Dartmouth–Hitchcock Medical Center who had been to Italy. On March 3 , Arizona 's Department of Health Services reported a new confirmed case in Maricopa County , a man in his 20s who had made contact with a case outside of Arizona .
2020 coronavirus pandemic in the United States