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Family name Suero (Suero , سورو , Serum ) , all around the world, is a common surname. The cognomen Suero is habitual in Latin America and the Caribbean, particularly the Dominican Republic, where it is a common surname, Dominica, where it is quite a common surname, and Puerto Rico, where it is quite a rare surname. In absolute terms, it is commonest in the Dominican Republic, the United States, and Spain. Much less frequently, Suero is the forename as well as the last name.