World/Pandemic
United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
H2
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 18, 19, 20, 21, 22, 23