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  3. One of the biggest changes since 1990 is the degree to which bioterrorism has become a public health priority. Although there ha

One of the biggest changes since 1990 is the degree to which bioterrorism has become a public health priority. Although there ha

admin2020-04-14  4
问题     One of the biggest changes since 1990 is the degree to which bioterrorism has become a public health priority. Although there had long been concern about vulnerability to biowarfare and bioterrorism, the anthrax episode in the fall of 2001 made it clear that the concern is no longer theoretical. Until very recently, the important role of public health at the frontlines of bioterrorism preparedness was unrecognized. Although concern about emerging infections has helped stimulate funding for the chronically underappreciated public health system, the threat of bioterrorism motivated the first real infusion of new money into public health in decades.
    Many of the capabilities needed to defend against bioterrorism are the same as those needed to combat natural emerging infections. In both instances, the problem is an unexpected outbreak of infectious disease, of which the first indication is likely to be sick people in emergency rooms or clinics. Indeed, as with the anthrax attacks, the public health and medical responses may be under way before the true nature of the outbreak is recognized. Public health and the interface with the health care system are therefore key elements in any effective response to bioterrorism.
    Whether the biggest threat is natural or engineered, much remains to be done. Efforts to strengthen surveillance and response worldwide and to improve communication must be accelerated and sustained. Further, we have only scratched the surface in terms of understanding the ecology of infectious diseases and developing strategies for regulating microbial traffic. We need tools for better predictive epidemiologic modeling when a new infection first appears and for better analysis of the factors that transfer pathogens (病原体) across species. One encouraging development is the program in the ecology of infectious disease that was started a few years ago becomes the National Science Foundation in cooperation with NIH.
    SARS is a good yardstick of our progress during the past 13 years. The syndrome was unusual because novel infections that spread from person to person are relatively rare. Once cases were finally reported, the public health response was vigorous. WHO warned health care providers, researchers rapidly identified a candidate virus, and prototype diagnostic tests quickly became available. The vast reach of the Internet was instrumental in sharing information and coordinating activities worldwide.
How was SARS different from other infectious diseases?
选项 A、It spreads from person to person.
B、It is the latest engineered infection.
C、It takes a long time to identify the symptoms.
D、It manifests the progress in relevant research.
答案A
解析 末段第2句中的unusual because表明了SARS与其他传染病的不同之处，选项A就是because后引出的内容，所以是本题答案。
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