参考答案：根据西班牙埃菲通讯社发布的一份报告，许多拉美国家领导人担心，经济危机可能会引发欧洲国家掀起一轮保护主义浪潮并且采取反移民措施。

解析：
According to a report released by the Spanish news agency Efe, Many Latin American leaders voiced fears that the economic crisis might unleash a wave of protectionism and anti-immigration measures in Europe.