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自己找到答案了。紧张ing.......
"The best way to protect yourself against whooping cough is to be vaccinated, and ensure your vaccinations are up to date. But Associate Professor Kristine Macartney, deputy director of the National Centre for Immunisation and Surveillance in Sydney, says there are still a small number of people who can catch the disease after being vaccinated.
"No vaccine is 100 per cent effective at preventing all forms of a disease, and, if we look at whooping cough vaccine that is demonstrated in the current epidemic," she says." 
[ 本帖最后由 jobsaus 于 2011-12-14 16:15 编辑 ] |
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