Have There Been Previous Swine Flu Outbreaks?
If swine flu sounds familiar to you, it\'s probably because you remember or have read about the 1976 swine flu outbreak at Fort Dix, N.J., among military recruits. It lasted about a month and then went away as mysteriously as it appeared. As many as 240 people were infected; one died.
The swine flu that spread at Fort Dix was the H1N1 strain. That\'s the same flu strain that caused the disastrous flu pandemic of 1918-1919, resulting in tens of millions of deaths.
Concern that a new H1N1 pandemic might return with winter led to a crash program to create a vaccine and vaccinate all Americans against swine flu. That vaccine program ran into all kinds of problems -- not the least of which was public perception that the vaccine caused excessive rates of dangerous reactions. After more than 40 million people were vaccinated, the effort was abandoned.
As it turned out, there was no swine flu epidemic.
6、 我打过流感针了,我对猪流感免疫吗?
不能,目前还没有猪流感疫苗.有可能季节性的流感疫苗会对H3N2型猪流感病毒提供部分抗体.但在加州出现的是H1N1型毒株.与人类流感H1N1毒株区别很大.先前接种过人型H1N1流感疫苗是否能部分抵御此次爆发的猪型H1N1病毒,目前不得而知. 然而,CDC已经从一位被感病人身上提取出的猪流感病毒里开发出一个疫苗种,并已启动一旦需要立即开发的程序.是否需要在下一个流感季节到来前批量生产是个大问题.
【猪流感的症状? The Symptoms of Swine Flu】相关文章:
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