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Outbreaks of Rift Valley fever occur irregularly in East

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Director
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Outbreaks of Rift Valley fever occur irregularly in East [#permalink] New post 24 May 2008, 07:09
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A
B
C
D
E

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Outbreaks of Rift Valley fever occur irregularly in East Africa, several years apart. When outbreaks do occur, they kill thousands of cattle. A livestock vaccine against the disease exists but is rarely used. It is too expensive for farmers to use routinely, and since it is not effective until a month after vaccination, administering it after an outbreak begins helps very little. Nevertheless, experts predict that use of the vaccine will increase significantly within the next few years.
Which of the following, if true, provides the strongest justification for the experts’ prediction?

A. Rift Valley fever is spread by mosquitoes, but each outbreak is so widespread that it is impractical to control it by using insecticides.
B. When an outbreak of Rift Valley fever occurs, unaffected countries often refuse to import livestock from the countries affected by the outbreak.
C. It would take less than a month for producers of the vaccine to adjust their production operations to cope with a large increase in demand.
D. Many cattle farmers in East Africa are nomadic or live in remote villages, and such farmers, who have little access to modern veterinary medicine, are particularly hard hit by outbreaks of Rift Valley fever.
E. Recently published research has shown that certain identifiable climatic conditions are almost invariably followed, within two to five months, by an outbreak of Rift Valley fever.
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Re: CR - rift valley [#permalink] New post 24 May 2008, 09:24
E for me
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Re: CR - rift valley [#permalink] New post 25 May 2008, 03:03
I've seen this one before - I am dead on for E to be the answer. But I believe the OA is something else ... I still dont agree with the OA.
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Re: CR - rift valley [#permalink] New post 25 May 2008, 04:40
It sure looks like E to me. E supports the theory that administering the vaccination can be planned, which will possibly allow the increase in use by farmers.

Any critique will be appreciated. :-D
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Re: CR - rift valley [#permalink] New post 25 May 2008, 13:05
straight E.

If it is possible to predict when the fever occurs then there will be time to administer the vaccine.
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Re: CR - rift valley [#permalink] New post 25 May 2008, 15:43
Looks to be E,

if the outbreak is predictable, then there will be more usage of the vaccine.
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Re: CR - rift valley [#permalink] New post 26 May 2008, 16:38
It is E for me.

OA pls?
Re: CR - rift valley   [#permalink] 26 May 2008, 16:38
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