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Mastitis is an infection of the udder in cows that, although

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Mastitis is an infection of the udder in cows that, although [#permalink]

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Mastitis is an infection of the udder in cows that, although not dangerous, causes them to give poor-quality milk. Most cases of mastitis are caused by the bacterium Staphylococcus aureus, against which antibiotics are ineffective. However, a related bacterium, Staphylococcus simulans, quickly clears up even severe infections of S. aureus simply by displacing the bacteria. S. simulans is nevertheless unlikely to become the preferred treatment for cases of mastitis, since ....

A. certain dangerous bacteria that normally cannot take hold can do so in the presence of S. simulans.
B. the current resistance of S. aureus to antibiotics derives in part from a past pattern of overuse of those antibiotics
C. the milk from cows infected with S. aureus is generally not of such poor quality as to be entirely unusable
D. careful farming practice can reduce the incidence of mastitis to a minimum
E. the only symptom of mild cases of mastitis is the deterioration in the quality of the milk Produced

Can someone provide some explaination ?
[Reveal] Spoiler: OA

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 22 Sep 2007, 12:29
alimad wrote:
Mastitis is an infection of the udder in cows that, although not dangerous, causes them to give poor-quality milk. Most cases of mastitis are caused by the bacterium Staphylococcus aureus, against which antibiotics are ineffective. However, a related bacterium, Staphylococcus
simulans, quickly clears up even severe infections of S. aureus simply by displacing the bacteria. S. simulans is nevertheless unlikely to become the preferred treatment for cases of mastitis, since .

A. certain dangerous bacteria that normally cannot take hold can do so in the presence of S.
simulans.
B. the current resistance of S. aureus to antibiotics derives in part from a past pattern of
overuse of those antibiotics
C. the milk from cows infected with S. aureus is generally not of such poor quality as to be
entirely unusable
D. careful farming practice can reduce the incidence of mastitis to a minimum
E. the only symptom of mild cases of mastitis is the deterioration in the quality of the milk Produced

Can someone provide some explaination ?


B,C,D,E can be ruled out as it does not mentioned an reason related to S.simuns and the reasoning is not sufficient for ruling out the usage of this bacteria.
So I think its "A"

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 22 Sep 2007, 12:47
i think by poe its B

A-supports
C- not mentioned
D-out of scope
E-irrelevant

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 22 Sep 2007, 12:55
Vote for 'A'

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 22 Sep 2007, 13:04
alimad wrote:
Mastitis is an infection of the udder in cows that, although not dangerous, causes them to give poor-quality milk. Most cases of mastitis are caused by the bacterium Staphylococcus aureus, against which antibiotics are ineffective. However, a related bacterium, Staphylococcus
simulans, quickly clears up even severe infections of S. aureus simply by displacing the bacteria. S. simulans is nevertheless unlikely to become the preferred treatment for cases of mastitis, since .

A. certain dangerous bacteria that normally cannot take hold can do so in the presence of S.
simulans.
B. the current resistance of S. aureus to antibiotics derives in part from a past pattern of
overuse of those antibiotics
C. the milk from cows infected with S. aureus is generally not of such poor quality as to be
entirely unusable
D. careful farming practice can reduce the incidence of mastitis to a minimum
E. the only symptom of mild cases of mastitis is the deterioration in the quality of the milk Produced

Can someone provide some explaination ?


this is asking us to find another premise that will support the conclusion that S.S. (Staphylococcus simulans) will not be ideal treatment for mastitis (bact Staphylococcus aureus)

I got B for the answer based on the following reasoning:

A) actually says that S.S. is effective so counters the conclusion that S.S. will not be preferred treatment

B) shows why S.S. would not be a good treatment - that the bacterium Staph aureus becomes resistant to the overuse of antibiotics

C), D), and E) are not relevant to the conclusion and out of scope

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 22 Sep 2007, 13:27
beckee529 wrote:
alimad wrote:
Mastitis is an infection of the udder in cows that, although not dangerous, causes them to give poor-quality milk. Most cases of mastitis are caused by the bacterium Staphylococcus aureus, against which antibiotics are ineffective. However, a related bacterium, Staphylococcus
simulans, quickly clears up even severe infections of S. aureus simply by displacing the bacteria. S. simulans is nevertheless unlikely to become the preferred treatment for cases of mastitis, since .

A. certain dangerous bacteria that normally cannot take hold can do so in the presence of S.
simulans.
B. the current resistance of S. aureus to antibiotics derives in part from a past pattern of
overuse of those antibiotics
C. the milk from cows infected with S. aureus is generally not of such poor quality as to be
entirely unusable
D. careful farming practice can reduce the incidence of mastitis to a minimum
E. the only symptom of mild cases of mastitis is the deterioration in the quality of the milk Produced

Can someone provide some explaination ?


this is asking us to find another premise that will support the conclusion that S.S. (Staphylococcus simulans) will not be ideal treatment for mastitis (bact Staphylococcus aureus)

I got B for the answer based on the following reasoning:

A) actually says that S.S. is effective so counters the conclusion that S.S. will not be preferred treatment
S. S. is effective of what ....holding dangerous bacteria ..so though SS can completely remover S.A but it can be a cause of increase of dangerous bacteria

B) shows why S.S. would not be a good treatment - that the bacterium Staph aureus becomes resistant to the overuse of antibiotics
We are not talking about antibodies we are talking about SS ...treatment of SA by SS has nothing to do with Antibodies, Antibodies are ineffective thats the reason SS is being used.

C), D), and E) are not relevant to the conclusion and out of scope

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 22 Sep 2007, 14:05
thanks Sachu.. I misinterpreted the stem! It helps to list out the reasoning so others can critique and one can learn rather than just listing an answer..That's what I get for multi-tasking while trying to study =P

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 22 Sep 2007, 16:57
alimad wrote:
Mastitis is an infection of the udder in cows that, although not dangerous, causes them to give poor-quality milk. Most cases of mastitis are caused by the bacterium Staphylococcus aureus, against which antibiotics are ineffective. However, a related bacterium, Staphylococcus
simulans, quickly clears up even severe infections of S. aureus simply by displacing the bacteria. S. simulans is nevertheless unlikely to become the preferred treatment for cases of mastitis, since .

A. certain dangerous bacteria that normally cannot take hold can do so in the presence of S.
simulans.
B. the current resistance of S. aureus to antibiotics derives in part from a past pattern of
overuse of those antibiotics
C. the milk from cows infected with S. aureus is generally not of such poor quality as to be
entirely unusable
D. careful farming practice can reduce the incidence of mastitis to a minimum
E. the only symptom of mild cases of mastitis is the deterioration in the quality of the milk Produced

Can someone provide some explaination ?


Clear A.

We need to find a reason why S Simulans is not going to be used.

B: irrelevant. We don't care about antibiotics in this case b/c we are trying to find a reason why SS is not going to be used to eliminate masitis.
C. irrelevant.
D. may suggest an alternative way instead of using SS, but doesn't explain why using this is better than SS.
E. Irrelevant.

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 22 Sep 2007, 19:35
Sachu wrote:
beckee529 wrote:
alimad wrote:
Mastitis is an infection of the udder in cows that, although not dangerous, causes them to give poor-quality milk. Most cases of mastitis are caused by the bacterium Staphylococcus aureus, against which antibiotics are ineffective. However, a related bacterium, Staphylococcus
simulans, quickly clears up even severe infections of S. aureus simply by displacing the bacteria. S. simulans is nevertheless unlikely to become the preferred treatment for cases of mastitis, since .

A. certain dangerous bacteria that normally cannot take hold can do so in the presence of S.
simulans.
B. the current resistance of S. aureus to antibiotics derives in part from a past pattern of
overuse of those antibiotics
C. the milk from cows infected with S. aureus is generally not of such poor quality as to be
entirely unusable
D. careful farming practice can reduce the incidence of mastitis to a minimum
E. the only symptom of mild cases of mastitis is the deterioration in the quality of the milk Produced

Can someone provide some explaination ?


this is asking us to find another premise that will support the conclusion that S.S. (Staphylococcus simulans) will not be ideal treatment for mastitis (bact Staphylococcus aureus)

I got B for the answer based on the following reasoning:

A) actually says that S.S. is effective so counters the conclusion that S.S. will not be preferred treatment
S. S. is effective of what ....holding dangerous bacteria ..so though SS can completely remover S.A but it can be a cause of increase of dangerous bacteria

B) shows why S.S. would not be a good treatment - that the bacterium Staph aureus becomes resistant to the overuse of antibiotics
We are not talking about antibodies we are talking about SS ...treatment of SA by SS has nothing to do with Antibodies, Antibodies are ineffective thats the reason SS is being used.

C), D), and E) are not relevant to the conclusion and out of scope

I agree with sachu...so can the author of this post declare the OA??

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 09 Jun 2015, 12:18
for the last 8 years no one touched upon this one. Bumping up
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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 24 Jun 2015, 01:20
Mastitis is an infection of the udder in cows that, although not dangerous, causes them to give poor-quality milk.
Most cases of mastitis are caused by the bacterium Staphylococcus aureus, against which antibiotics are ineffective. However, a related bacterium, Staphylococcus simulans, quickly clears up even severe infections of S. aureus simply by displacing the bacteria. S. simulans is nevertheless unlikely to become the preferred treatment for cases of mastitis, since ....

Gist of the arg:
SA can't be treated by antibiotic but SS can fix it by displacing SA bacteria. However SS is unlikely to become the preferred treatment.
Now to solve this discrepancy, we need to find an option that shows that SS has its own disadvantages. This is were A wins.

A. certain dangerous bacteria that normally cannot take hold can do so in the presence of S. simulans.
B. the current resistance of S. aureus to antibiotics derives in part from a past pattern of overuse of those antibiotics
C. the milk from cows infected with S. aureus is generally not of such poor quality as to be entirely unusable
D. careful farming practice can reduce the incidence of mastitis to a minimum
E. the only symptom of mild cases of mastitis is the deterioration in the quality of the milk Produced
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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 30 Jun 2015, 03:02
S. simulans is nevertheless unlikely to become the preferred treatment for cases of mastitis, since ....

We need to find the disadvantage of using S. simulans as the preferred treatment.
Option (A) provides the disadvantage and is the correct choice.

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 25 Jul 2015, 21:51
Conclusion:SS cannot be used even though it can can remove SA.

We need to find a disadvantage of SS.Clearly,A is the only option that gives the drawback of SS

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 24 Aug 2016, 14:37
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 19 Aug 2017, 16:12
alimad wrote:
Mastitis is an infection of the udder in cows that, although not dangerous, causes them to give poor-quality milk. Most cases of mastitis are caused by the bacterium Staphylococcus aureus, against which antibiotics are ineffective. However, a related bacterium, Staphylococcus simulans, quickly clears up even severe infections of S. aureus simply by displacing the bacteria. S. simulans is nevertheless unlikely to become the preferred treatment for cases of mastitis, since ....

A. certain dangerous bacteria that normally cannot take hold can do so in the presence of S. simulans.
B. the current resistance of S. aureus to antibiotics derives in part from a past pattern of overuse of those antibiotics
C. the milk from cows infected with S. aureus is generally not of such poor quality as to be entirely unusable
D. careful farming practice can reduce the incidence of mastitis to a minimum
E. the only symptom of mild cases of mastitis is the deterioration in the quality of the milk Produced

Can someone provide some explaination ?


The trick to many of these types of questions is to not exhaust yourself thinking outside the scope of the stimulus, and simply find the most direct reason why S.aureus itself is bad. Which of these answer choices posits something bad about "simulans"- A

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 20 Aug 2017, 00:54
Hello Expert,

Why answer is not c?

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Re: Mastitis is an infection of the udder in cows that, although [#permalink]

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New post 24 Aug 2017, 14:19
VKat wrote:
Hello Expert,

Why answer is not c?

Choice (C) does not resolve the apparent discrepancy. If S. aureus causes cows to give poor-quality milk and S. simulans quickly clears up even severe infections of S. aureus, why not use S. simulans as a treatment?

Choice (C) tells us that the milk from cows infected with S. aureus is not entirely unusable, but that still means that at least some of the milk is unusable. If that is the case, and S. simulans clears up infections of S aureus, why not use S. simulans as a treatment so that all of the milk is usable? Only choice (A) explains this apparent discrepancy.
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Re: Mastitis is an infection of the udder in cows that, although   [#permalink] 24 Aug 2017, 14:19
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