Preferred locations: CA (Alameda County), MO (St. Louis County), NJ (Morris County), PA (Allegheny County), All eligible locations: Argentina, Belgium, Brazil, Canada, Chile, China, Colombia, Costa Rica, France, Germany, Guatemala, Hungary, Italy, Kenya, Korea, Republic of, Malawi, Mexico, Netherlands, Nigeria, Pakistan, Paraguay, Philippines, Romania, Russian Federation, Spain, Switzerland, Tanzania, United Republic of, Thailand, Turkey, Ukraine, Uruguay, Venezuela, Bolivarian Republic of, Vietnam, Zambia, Puerto Rico, AZ (Maricopa County, Pima County, Pinal County), AR (Arkansas County, Chicot County, Clay County, Craighead County, Desha County, Drew County, Greene County, Jackson County, Jefferson County, Lawrence County, Lonoke County, Mississippi County, Monroe County, Phillips County, Poinsett County, Prairie County, Randolph County), CA (Butte County, Colusa County, Contra Costa County, Glenn County, Lake County, Los Angeles County, Marin County, Monterey County, Napa County, Placer County, Sacramento County, San Benito County, San Diego County, San Francisco County, San Luis Obispo County, San Mateo County, Santa Barbara County, Santa Clara County, Santa Cruz County, Solano County, Sutter County, Ventura County, Yolo County, Yuba County), DE (Kent County, New Castle County), FL (Hardee County, Highlands County, Osceola County, Polk County), HI (Honolulu County, Kalawao County, Maui County), ID (Ada County, Bannock County, Bear Lake County, Canyon County, Caribou County, Franklin County, Gem County, Gooding County, Jerome County, Lincoln County, Owyhee County, Payette County, Twin Falls County, Washington County), IL (Alexander County, Bond County, Bureau County, Calhoun County, Carroll County, Cass County, Champaign County, Christian County, Clay County, Clinton County, Cook County, De Witt County, DeKalb County, Douglas County, DuPage County, Fayette County, Ford County, Fulton County, Gallatin County, Greene County, Henderson County, Henry County, Iroquois County, Jefferson County, Jersey County, Kane County, Kankakee County, Kendall County, Knox County, LaSalle County, Lake County, Lee County, Livingston County, Logan County, Macon County, Macoupin County, Madison County, Marion County, Marshall County, Mason County, McDonough County, McLean County, Menard County, Mercer County, Monroe County, Montgomery County, Moultrie County, Ogle County, Peoria County, Perry County, Piatt County, Pike County, Rock Island County, Sangamon County, Scott County, Shelby County, St. Clair County, Stephenson County, Tazewell County, Vermilion County, Warren County, Washington County, Wayne County, White County, Whiteside County, Will County, Winnebago County, Woodford County), IN (Benton County, Boone County, Carroll County, Cass County, Clinton County, Delaware County, Elkhart County, Gibson County, Grant County, Hamilton County, Hendricks County, Howard County, Jasper County, Jay County, LaGrange County, Lake County, Madison County, Marion County, Miami County, Montgomery County, Morgan County, Newton County, Noble County, Pike County, Posey County, Pulaski County, Putnam County, Randolph County, Spencer County, St. Joseph County, Steuben County, Tippecanoe County, Tipton County, Vanderburgh County, Wabash County, Warren County, Warrick County, Wayne County, White County), IA (Benton County, Black Hawk County, Boone County, Bremer County, Buchanan County, Buena Vista County, Butler County, Calhoun County, Cedar County, Cerro Gordo County, Cherokee County, Clay County, Clayton County, Dallas County, Delaware County, Des Moines County, Fayette County, Franklin County, Greene County, Grundy County, Guthrie County, Hamilton County, Hancock County, Hardin County, Henry County, Humboldt County, Ida County, Iowa County, Jasper County, Johnson County, Keokuk County, Kossuth County, Linn County, Louisa County, Lyon County, Madison County, Mahaska County, Marion County, Marshall County, Muscatine County, O'Brien County, Pocahontas County, Polk County, Poweshiek County, Sac County, Scott County, Sioux County, Story County, Tama County, Warren County, Washington County, Webster County, Woodbury County, Wright County), KS (Butler County, Cowley County, Harvey County, Reno County, Sedgwick County, Sumner County), KY (Carlisle County, Daviess County, Fulton County, Graves County, Henderson County, Hickman County, McLean County, Union County, Webster County), LA (Jefferson Parish, Lafourche Parish, Livingston Parish, Orleans Parish, Plaquemines Parish, St. Bernard Parish, St. Charles Parish, St. James Parish, St. John the Baptist Parish, Tangipahoa Parish, Terrebonne Parish, West Carroll Parish), MD (Baltimore County, Caroline County, Cecil County, Harford County, Kent County, Queen Anne's County), MA (Bristol County, Essex County, Middlesex County, Norfolk County, Plymouth County, Suffolk County, Worcester County), MI (Berrien County, Branch County, Calhoun County, Cass County, Clinton County, Eaton County, Ingham County, Jackson County, Kalamazoo County, Livingston County, Shiawassee County, St. Joseph County, Van Buren County, Washtenaw County), MN (Becker County, Blue Earth County, Brown County, Chippewa County, Clay County, Dakota County, Dodge County, Freeborn County, Goodhue County, Hennepin County, Kandiyohi County, Le Sueur County, Lyon County, McLeod County, Meeker County, Mower County, Norman County, Otter Tail County, Redwood County, Renville County, Rice County, Rock County, Scott County, Sibley County, Steele County, Wabasha County, Waseca County, Washington County, Wilkin County, Yellow Medicine County), MS (Bolivar County, Hinds County, Humphreys County, Issaquena County, Leflore County, Madison County, Rankin County, Sharkey County, Sunflower County, Warren County, Washington County, Yazoo County), MO (Carroll County, Chariton County, Cooper County, Dunklin County, Howard County, Jefferson County, Lafayette County, Lincoln County, Mississippi County, New Madrid County, Pettis County, Pike County, Saline County, Scott County, St. Charles County, St. Louis City, St. Louis County, Stoddard County), NE (Adams County, Buffalo County, Butler County, Custer County, Dawson County, Fillmore County, Franklin County, Frontier County, Gosper County, Hall County, Hamilton County, Harlan County, Kearney County, Lincoln County, Merrick County, Phelps County, Polk County, Saline County, Seward County, Sherman County, York County), NH (Hillsborough County, Rockingham County), NJ (Cumberland County, Salem County), NM (Doña Ana County), NC (Duplin County, Greene County, Harnett County, Johnston County, Lenoir County, Sampson County, Wayne County), ND (Cass County, Richland County), OH (Allen County, Auglaize County, Darke County, Hancock County, Hardin County, Henry County, Mercer County, Miami County, Montgomery County, Preble County, Putnam County, Sandusky County, Seneca County, Shelby County, Wood County, Wyandot County), OR (Malheur County), PA (Chester County), SC (Chesterfield County, Darlington County, Florence County, Kershaw County, Lancaster County, Lee County, Marlboro County, Sumter County), SD (Lincoln County, Minnehaha County, Turner County, Union County), TN (Dyer County, Gibson County, Lake County, Obion County, Weakley County), TX (Brazos County, Burleson County, Cameron County, Crosby County, El Paso County, Grimes County, Hale County, Hidalgo County, Hockley County, Lamb County, Lubbock County, Lynn County, Madison County, Milam County, Nacogdoches County, Panola County, Robertson County, Rusk County, San Augustine County, Shelby County, Washington County, Willacy County), WA (Adams County, Franklin County, Grant County, Island County, Jefferson County, King County, Kitsap County, Lincoln County, Pierce County, Snohomish County), WI (Columbia County, Dane County, Dodge County, Green County, Green Lake County, Jefferson County, Marquette County, Pierce County, Sauk County), WY (Lincoln County).