81 U.S. healthcare workers have H1N1 virus

At least 81 U.S. healthcare workers have contracted laboratory-confirmed cases of the novel H1N1 influenza virus and about half caught the bug on the job, the Centers for Disease Control and Prevention announced. The finding suggests that hospitals and workers are not taking sufficient preventive measures to limit the spread of the virus. If a large-scale outbreak of the virus recurs this fall, the infected nurses, doctors, and others could transmit the virus to debilitated patients before their own symptoms become apparent.