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为了应对2009年4月爆发的猪流感,墨西哥城的居民在公共场所都戴上了口罩●对许多病原体而言,人们的接触交往方式是其传播的重要途径:从流感到SARS,人们罹病的风险取决于跟谁接触以及如何接触。问题是,交往方式和身体接触并非是疾病传播的唯一途径,某些疾病会通过遗留在物体表面的病毒传播。然而,流行病学家关于人们的交往方式以及疾病传播途径的资料十分匮乏。在进入2013年的第二个星期,纽约州在全州范围公布了一项公共卫生紧急措施。此时,当地的
Residents of Mexico City wear masks in public places in response to the swine flu that broke out in April 2009 ● For many pathogens, people’s contact is an important route of transmission: from flu to SARS, people are sick The risk depends on who you are approaching and how you reach it. The problem is that communication and physical contact are not the only ways to spread the disease, and some diseases are transmitted by viruses that are left on the surface of the object. However, there is a paucity of information from epidemiologists about how people are interacting and how the disease is transmitted. In the second week of 2013, New York State has announced a public health emergency across the state. At this time, the local