What is the cattle screwworm, the plague that has forced to strengthen health security in Mexico
The cattle screwworm is a big problem for ranchers. (Government of Mexico/Comexa)
The screwworm lays its eggs in the open wounds of warm-blooded mammals.  (REUTERS/Nicolas Misculin)
The screwworm lays its eggs in the open wounds of warm-blooded mammals. (REUTERS/Nicolas Misculin)
Mexico eradicated the screwworm in 1991. (Government of Mexico/Comexa)
Mexico eradicated the screwworm in 1991. (Government of Mexico/Comexa)

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