美国疾病控制与预防中心的汤姆·斯金纳表示，在12月的最后一周，流感病毒开始传播。
The Centers for Disease Control and Prevention 's Tom Skinner says in the last week of December flu was widespread.
迭戈波塔利斯大学的教育专家若泽•华金•布伦纳表示，这足以改变该行业的态度。
That would be enough to change attitudes in the profession, says José Joaquín Brunner, an education specialist at Diego Portales University.
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