Atopy is a predisposition toward developing certain allergic hypersensitivity reactions. Atopy may have a hereditary component, although contact with the allergen or irritant must occur before the hypersensitivity reaction can develop.
As of 2012, 63.9 percent of players playing in Major League Baseball are white. There is no way of telling the exact number due to the number of players.
Milwaukee had the most foreign-born players with 14 and Texas was next at 13. Fox News Latino did the math and found out that 24.2 percent players on this year's MLB rosters are foreign-born players from Latin American countries. Only 4 percent of the league is Canadian, European or Asian.