Some countries are reporting that as many as 15 percent of patients infected(感染)with the new H1N1 virus need hospital care,further straining already overburdened healthcare systems,WHO said.
“During the winter season in the southern parts of the world,several countries have viewed the need for intensive care as the greatest burden on health services,” it said.
“Preparedness measures need to predict this increased demand on intensive care units,which could be overwhelmed by a sudden burst in the number of severe cases.”
Earlier,WHO reported that H1N1 had reached epidemic(蔓延) levels in Japan,signaling an early start to what may be a long influenza season this year,and that it was also worsening in tropical regions.
“Perhaps most significantly,clinicians from around the world are reporting a very severe form of disease,also in young and otherwise healthy people,which is rarely seen during seasonal influenza infections,” WHO said.
“In these patients,the virus directly infects the lung,causing severe respiratory(呼吸)failure.Saving these lives depends on highly specialized and demanding care in intensive care units,usually with long and costly stays.”
WHO estimates that more than 230 million people globally have asthma(哮喘),and more than 220 million have diabetes(糖尿病).Obesity may also worsen the risk of severe infection,WHO said.The good newspeople infected with AIDS virus do not seem to be at special risk from H1N1,WHO said.
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