A Central American migrant, moving in a caravan through Mexico and traveling to request asylum in U.S, checks her health status as she arrives to Mexicali, Baja California state A Central American migrant, moving in a caravan through Mexico and traveling to request asylum in U.S, checks her health status as she arrives to Mexicali, Baja California state, Mexico April 25, 2018. REUTERS/Edgard Garrido