少数重症病例仍然需要医院护理。
A few cases are so severe they will still need hospital care.
“我们希望扩大抗病毒治疗会有助于减少重症病例的出现”，沃森说。
"It's hoped wider access to antiviral treatments will help reduce the number of severe cases we are seeing," said Watson.
在已知感染人类的所有禽流感病毒中，H5N1造成的重症病例最多，死亡人数也最多。
Of all avian influenza viruses known to infect humans, H5N1 has caused the greatest number of cases of very severe disease and the largest number of deaths.
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