Centers for Disease Control and Prevention, Centers for Disease Control and Prevention, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Colorado Department of Public Health and Environment, Colorado Department of Public Health and Environment, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Minnesota Department of Health, Minnesota Department of Health, Virginia Division of Consolidated Laboratory Services, affiliation not provided to SSRN and Centers for Disease Control and Prevention