A federal appeals court has ruled that the World Health Organization branch for the Americas is not immune from being sued for its alleged role in a scheme to traffic Cuban doctors for the benefit of the island’s communist government, the first decision of its kind upholding a suit against an international organization for allegedly violating U.S. law. The U.S. Court of Appeals for the District of Columbia upheld a lower district court decision, ruling last week that a lawsuit brought by several Cuban doctors against the Pan American Health Organization may continue. The court concluded that t…