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# Outbreaks of Rift Valley fever occur irregularly in East

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Re: My American friend and I have been arguing for 2 days...Pls [#permalink]

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24 Sep 2012, 10:23
I got stuck up with A and B
but eliminating B is very easy since nothing in the argument is mentioned about the revenue from livestock business or any such issue which can give a clue for this answer to be true.
But keeping in mind the principle of strengthening it becomes easy to go with A.
Look for an option that removes the possibility of another alternative.
Concl Consumption of vaccine will increase .........Ask why to it......If 2nd system eradicate the fever is not helpful......Hence Option A wins
E can be eliminated at first sight as it says about climatic condition the impact of which is not at all discussed in the argument.
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Re: Outbreaks of Rift Valley fever occur irregularly in East [#permalink]

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25 Sep 2012, 08:09
still confuse
y not D?
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Re: Outbreaks of Rift Valley fever occur irregularly in East [#permalink]

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26 Jul 2013, 08:14
Can someone provide a detailed analysis on this one. Thanks!
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Re: Outbreaks of Rift Valley fever occur irregularly in East [#permalink]

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26 Jul 2013, 08:42
3
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fozzzy wrote:
Can someone provide a detailed analysis on this one. Thanks!

Vaccine's drawbacks:
I)It is too expensive
II)It is not effective until a month after vaccination

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?

What answer are we looking for? It will be something that will eliminate a current defect of the vaccine, or will be an advantage that will balance everything: like "has been found that the vaccine makes the cattle immune to every type of disease and increases its reproductivity rate"(I'm making this up).

A. Rift Valley fever is spread by mosquitoes, but each outbreak is so widespread that it is impractical to control it by using insecticides.
Irrelevant.
B. When an outbreak of Rift Valley fever occurs, unaffected countries often refuse to import livestock from the countries affected by the outbreak.
Maybe... this could be seen as an advantage to use the vaccine, because revenues for the farmers could be lower if they do not use it. We can keep it for now...
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.
Irrelevant because it does not offer an argument like those described above.
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.
This is just a fact that has no impact on the prediction.
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.
This seems good as well because undermines the drawback #2. If we can predict an outbreak two months before, the vaccine (that takes one month to be effective) could be used more than today.

B and E are the contenders. I would look at the key words there to determine the correct answer.
B unaffected countries often refuse<== so the fact that B presents has already happened before, so it's not something that could change the current scenario and increase the use of the vaccine.
E. Recently published research<== this is a game changer. Recently new data has been released, so the situation described by the argument is actually changed.

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Re: Outbreaks of Rift Valley fever occur irregularly in East [#permalink]

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16 Oct 2013, 04:35
I don't seem to be understanding the language used in E. What I followed was that, certain climatic condition follow 'after' the outbreak. Is it before or after I am unable to follow.
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Re: Outbreaks of Rift Valley fever occur irregularly in East [#permalink]

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16 Oct 2013, 09:05
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mohnish104 wrote:
I don't seem to be understanding the language used in E. What I followed was that, certain climatic condition follow 'after' the outbreak. Is it before or after I am unable to follow.

Yeah, the wording is especially designed to cause confusion . But option E is correct.

You would generally say
than
humid conditions are followed by storms. Both are correct though second one is wordy.

Option E says, identifiable climatic conditions are almost invariably followed, within two to five months, by an outbreak of Rift Valley fever.
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Re: Outbreaks of Rift Valley fever occur irregularly in East [#permalink]

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17 Oct 2013, 00:53
Thanks Ramananda, I will keep repeating it. you are my teacher now. If I am stuck with verbal, I am gonna come to you.
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Re: Outbreaks of Rift Valley fever occur irregularly in East [#permalink]

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24 Oct 2014, 01:53
So finally is OA E or A? I chose A
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Re: Outbreaks of Rift Valley fever occur irregularly in East [#permalink]

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25 Oct 2014, 13:22
I agree with you guys and I would go for E as well.
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Outbreaks of Rift Valley fever occur irregularly in East Africa [#permalink]

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07 May 2015, 20:35
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: Outbreaks of Rift Valley fever occur irregularly in East [#permalink]

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29 May 2016, 23:34
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Re: Outbreaks of Rift Valley fever occur irregularly in East [#permalink]

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30 May 2016, 02:01
notahug wrote:
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.

My American friend and I have been arguing for 2 days...Pls explain your answer!

We have to choose a development that has somehow changed the trend (Trend was that vaccine was not taken prior to spread of disease).

(A) This is an enticing option. We might select it thinking that vaccination would help. But again the passage does not specify whether vaccination is able to control the outbreak. Also it does not answer why suddenly this vaccine would become popular. This information is presumably known even now. Reject this option.
(B) This development occurs after outbreak. How will it encourage use of vaccine?
(C) Irrelevant.
(D) Similar to A, this situation is not new. We are searching for an option that is a recent development.
(E) This is exactly what we were looking for. This is a recent development. In case specific climatic conditions are identified, then there will be a increased likelihood of outbreak of fever. Then a pre-emptive action in the form of vaccine can be taken.

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Re: Outbreaks of Rift Valley fever occur irregularly in East [#permalink]

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17 Sep 2016, 00:56
Quote:
It is too expensive for farmers to use routinely, and since it is not effective until a month after vaccination

From the above extract from the passage, the key thing i used to understand here is that it is too expensive for farmers to use ROUTINELY. Option E provides them with an option of not using it routinely and instead use it when the outbreak season appears as it can be predicted from the climatic conditions.
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Re: Outbreaks of Rift Valley fever occur irregularly in East [#permalink]

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20 Sep 2016, 04:44
FN wrote:
BKK145 nice to see you..hope you are back in full force

I went with A..

A says..you cant control this fever by insecticides alone..that means farmers will have to use the vacine more often...imagine if Farmers used inseticide to kill the mosquitos ..and if insecticides worked..then they wouldnt use the vacines ..A strengthens it..

"and if insecticides worked." You have answered it yourself. This option has too many levels of assumptions. To add to that, there is nowhere mentioned in the answer that the insecticides will work.
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Re: Outbreaks of Rift Valley fever occur irregularly in East [#permalink]

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20 Sep 2016, 08:27
notahug wrote:
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.
Does it answers my query, NO
B. When an outbreak of Rift Valley fever occurs, unaffected countries often refuse to import livestock from the countries affected by the outbreak.
Umm...it can be a reason, if export of affected country goes down. It may force farmers to use that expensive vaccine. But what if the price of vaccine is not justified with the price that farmers get after selling livestock. Lets keep this choice and If we reject other choices I will mark this one.
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.
Doesn't help to answer our query
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.
Again NO
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.
It does tells us that we have a pattern of disease, and if this is true farmers will be able to better use the vaccine. It will give us a time frame when to use our vaccine. Total cost of using vaccine will come down and farmers will start using it.

My American friend and I have been arguing for 2 days...Pls explain your answer!

Argument states that demand for vaccine will increase.
Okay...so we need to find a reason that answers our question of why demand will increase.
Re: Outbreaks of Rift Valley fever occur irregularly in East   [#permalink] 20 Sep 2016, 08:27

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