It is currently 21 Nov 2017, 21:13

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# The traditional treatment of strep infections has been a

Author Message
TAGS:

### Hide Tags

Director
Joined: 05 Jan 2008
Posts: 684

Kudos [?]: 618 [7], given: 0

### Show Tags

27 Apr 2008, 11:51
7
KUDOS
29
This post was
BOOKMARKED
00:00

Difficulty:

55% (hard)

Question Stats:

60% (01:08) correct 40% (01:18) wrong based on 1356 sessions

### HideShow timer Statistics

The traditional treatment of strep infections has been a seven-day course of antibiotics, either penicillin or erythromycin. However, since many patients stop taking those drugs within three days, reinfection is common in cases where those drugs are prescribed. A new antibiotic requires only a three-day course of treatment. Therefore, reinfection will probably be less common in cases where the new antibiotic is prescribed than in cases where either penicillin or erythromycin is prescribed.

Which of the following, if true, most strengthens the argument?

A. Some of the people who are allergic to penicillin are likely to be allergic to the new antibiotic.

B. A course of treatment with the new antibiotic costs about the same as a course of treatment with either penicillin or erythromycin.

C. The new antibiotic has been shown to be effective in eradicating bacterial infections other than strep.

D. Some physicians have already begun to prescribe the new antibiotic instead of penicillin or erythromycin for the treatment of some strep infections.

E. Regardless of whether they take a traditional antibiotic or the new one, most patients feel fully recovered after taking the drug for three days.
[Reveal] Spoiler: OA

_________________

Persistence+Patience+Persistence+Patience=G...O...A...L

Kudos [?]: 618 [7], given: 0

Current Student
Joined: 17 Jan 2008
Posts: 585

Kudos [?]: 149 [11], given: 34

Location: Ann Arbor, MI
Schools: Ross '12 (MBA/MS)

### Show Tags

28 Apr 2008, 17:41
11
KUDOS
7
This post was
BOOKMARKED
E. People stop taking their antibiotic because they feel better. The problem with the traditional 7-day cycle is that people feel better sooner than they are fully cured. The wider the gap between feeling better than actually being better the larger the chances of reinfection. With the new 3-day antibiotic, theoretically, feel better time = actual cure time, narrowing the before mentioned gap and reducing reinfection.

C doesn't make sense to me. The passage is talking about strep, so the discussion about other kinds of bacterial infection is irrelevant.
_________________

Kudos [?]: 149 [11], given: 34

Manager
Status: I rest, I rust.
Joined: 04 Oct 2010
Posts: 121

Kudos [?]: 128 [11], given: 9

Schools: ISB - Co 2013
WE 1: IT Professional since 2006

### Show Tags

26 Oct 2010, 06:35
11
KUDOS
1
This post was
BOOKMARKED
What we need here is something that ensures that patients will not stop taking the new medicines before 3 days are over. Lets analyze the statements now:

(A) Some of the people who are allergic to penicillin are likely to be allergic to the new antibiotic.
This means that they will either stop taking the new medicine ahead of time or that it will not be effective for them. This actually weakens the argument.
(B) A course of treatment with the new antibiotic costs about the same as a course of treatment with either penicillin or erythromycin.
First of all, cost is out of scope. Even otherwise, people might have wanted to complete the course with new medicine if it was cheper, but since it is not there is no reason for them to. This neither strengthens nor weakens the argument.
(C) The new antibiotic has been shown to be effective in eradicating bacterial infections other than strep.
This is out of scope, but lets not rule it out for a moment.
(D) Some physicians have already begun to prescribe the new antibiotic instead of penicillin or erythromycin for the treatment of some strep infections.
Thank the physicians but they haven't done anything to strengthen our argument. They can prescribe the new medicine all they want but people may still not complete the dosage and get infected again. Silly people!!!
(E) Regardless of whether they take a traditional antibiotic or the new one, most patients feel fully recovered after taking the drug for three days.
This is our man. What it tells us is that, with old medicines, patients started feeling better in 3 days and hence stopped taking the dosage. With the new medicine too they would start feeling better only after 3 days; but by that time the new medicine would have done its job and hence no re-infection.

PS: Lets rule out C now
_________________

Respect,
Vaibhav

PS: Correct me if I am wrong.

Kudos [?]: 128 [11], given: 9

VP
Joined: 05 Jul 2008
Posts: 1402

Kudos [?]: 443 [4], given: 1

### Show Tags

30 Aug 2008, 11:23
4
KUDOS
Ans choice E has a subtle nuance.

Patients feel fully recovered after 3 days with either drug. That is different from patients stopping taking the drug after 3 days. In essence E explains why they are stopping the drug after 3 days. They feel full recovered where as the course is 7 day. In the case of new drug, they not only feel fully recovered, but also the course is only 3 day.

Makes sense?

Kudos [?]: 443 [4], given: 1

Director
Joined: 18 Feb 2008
Posts: 786

Kudos [?]: 131 [2], given: 25

### Show Tags

27 Apr 2008, 15:09
2
KUDOS
E, since both drug will make patients feel fully recovered after 3 days, it's safe to assume they will stop taking them after 3 days.

Kudos [?]: 131 [2], given: 25

Current Student
Joined: 17 Jan 2008
Posts: 585

Kudos [?]: 149 [1], given: 34

Location: Ann Arbor, MI
Schools: Ross '12 (MBA/MS)

### Show Tags

28 Apr 2008, 22:18
1
KUDOS
sondenso wrote:
At the same time, It seems that E weakens the premise:
prasannar wrote:
reinfection is common in cases where those drugs are prescribed

Wait to see a thorough explaination!

prasannar wrote:
The traditional treatment of strep infections has been a seven-day course of antibiotics,
either penicillin or erythromycin. However, since many patients stop taking those drugs
within three days, reinfection is common in cases where those drugs are prescribed
. A
new antibiotic requires only a three-day course of treatment. Therefore, reinfection will
probably be less common in cases where the new antibiotic is prescribed than in cases
where either penicillin or erythromycin is prescribed.

prasannar wrote:
E. Regardless of whether they take a traditional antibiotic or the new one, most
patients feel fully recovered after taking the drug for three days.

The passage is inferring that reinfection has more to do with patient's discontinuing the 7-day course after 3 days than it does with the penicillin or erythromycin itself. The reason patient's stop taking these drugs early is because they feel fully recovered after 3 days, 4 days earlier than it takes for the antibiotic to eradicate the infection. However, the new antibiotic only takes 3 days to fight off the infection, so reinfection isn't as likely with the new drug.

The way I see it, the larger the "gap" between how long it takes for the drug in question to fight off the infection and the time it takes before people stop taking the drug the more likely the chances for reinfection.

Hope that makes sense!
_________________

Kudos [?]: 149 [1], given: 34

Intern
Joined: 07 Dec 2005
Posts: 16

Kudos [?]: 22 [1], given: 0

### Show Tags

30 Aug 2008, 10:55
1
KUDOS
1
This post was
BOOKMARKED
IMO: E

Main issue is: People seem to stop taking the antibotics after 3 days. So a drug has to be effective in 3 days.

A. Some of the people who are allergic to penicillin are likely to be allergic to the
new antibiotic.
>> Out of scope. Eliminate.

B. A course of treatment with the new antibiotic costs about the same as a course of
treatment with either penicillin or erythromycin.
>> Irrelevant. Does not explain why people stop taking antibiotics after 3 days. Eliminate. (Note that if you were using the 2 of 5 rule, this would be one of the 2 remaining options)

C. The new antibiotic has been shown to be effective in eradicating bacterial
infections other than strep.
>> Out of scope. Eliminate.

D. Some physicians have already begun to prescribe the new antibiotic instead of
penicillin or erythromycin for the treatment of some strep infections.
>> Irrelevant. Eliminate.

E. Regardless of whether they take a traditional antibiotic or the new one, most
patients feel fully recovered after taking the drug for three days.
>> Correct choice.

Kudos [?]: 22 [1], given: 0

VP
Joined: 05 Jul 2008
Posts: 1402

Kudos [?]: 443 [1], given: 1

### Show Tags

30 Aug 2008, 10:59
1
KUDOS
spriya,

It possibly suggests another plus point of the drug. But the cost effectiveness of the solution is not what we are concerned with here.

We are concerned with reinfection as the conclusion says. Looking at E, if people take old and new drugs for the same period of time, the reinfection will be less for those who take the new drug

Kudos [?]: 443 [1], given: 1

Intern
Joined: 07 Dec 2005
Posts: 16

Kudos [?]: 22 [1], given: 0

### Show Tags

30 Aug 2008, 11:21
1
KUDOS
spriya,

There is a subtle difference. The answer choice does not repeat the argument.

Argument says: New drug is effective after 3 days vs the old one which is effective after 7.

Answer choice says: People feel better after 3 days, irrespective of which drug they take. -- Possibly the reason why they stop taking the drug after 3 days (which statement, by the way, is in the argument).

I know, GMAT can drive you nuts on these kind of subtle differences.

Perhaps looking at it this way will help:
We dont want reinfection. The prescribed drug has to be effective to avoid reinfection. People stop taking drugs after 3 days. The new drug is effective in 3 days.

E re-inforces (strengthens) the argument portion: "People stop taking drugs after 4 days" --- because they feel better after 3 days. Now, since we dont want reinfection, the new drug is a better alternative (which is the conclusion of the argument).

I hope this helps and that I have not confused you further.

Kudos [?]: 22 [1], given: 0

Manager
Status: Trying to get into the illustrious 700 club!
Joined: 18 Oct 2010
Posts: 78

Kudos [?]: 24 [1], given: 58

### Show Tags

27 Oct 2010, 11:39
1
KUDOS
icandy wrote:
Ans choice E has a subtle nuance.

Patients feel fully recovered after 3 days with either drug. That is different from patients stopping taking the drug after 3 days. In essence E explains why they are stopping the drug after 3 days. They feel full recovered where as the course is 7 day. In the case of new drug, they not only feel fully recovered, but also the course is only 3 day.

Makes sense?

It makes sense now. The most confusing part for me was "after taking the DRUG". I was unsure which drug the passage was referring to but I guess it is referring to both. Is this correct?
_________________

I'm trying to not just answer the problem but to explain how I came up with my answer. If I am incorrect or you have a better method please PM me your thoughts. Thanks!

Kudos [?]: 24 [1], given: 58

Manhattan Prep Instructor
Joined: 22 Sep 2010
Posts: 184

Kudos [?]: 270 [1], given: 7

Schools: MBA, Thunderbird School of Global Management / BA, Wesleyan University

### Show Tags

29 Oct 2010, 09:10
1
KUDOS
Great discussion here. Quick note:

As future MBA students, GMAT test takers tend to be too focused on costs. I can think of at least a few CR problems off the top of my head in which something related to "cost" is a trap answer. If you're going to choose an answer that relates to cost, I would really encourage you to spend a few extra seconds asking yourself whether the cost of the program or project really has anything to do with the argument itself.
_________________

Brett Beach-Kimball | Manhattan GMAT Instructor

Manhattan GMAT Discount | Manhattan GMAT Reviews

Kudos [?]: 270 [1], given: 7

Manager
Joined: 31 May 2010
Posts: 94

Kudos [?]: 48 [1], given: 25

### Show Tags

12 Dec 2010, 20:28
1
KUDOS
No matter how much practise you do for CR , there will always a Point in favour or in against close options...

After so much of reasoning defintly i will be 'E' ...

But guys, how many ppl will get it right in given time constraint of 1 minute in the actual exam...
_________________

Kudos if any of my post helps you !!!

Kudos [?]: 48 [1], given: 25

Senior Manager
Joined: 20 Dec 2013
Posts: 267

Kudos [?]: 107 [1], given: 29

Location: India

### Show Tags

22 Apr 2014, 03:08
1
KUDOS
Option E.
If the patients will feel okay only AFTER THREE DAYS,then they won't stop taking the new drug BEFORE 3 DAYS.And the new drug just takes 3 days to cure the infection.Hence the argument that the new antibiotic drug will be more effective is strengthened as THERE WILL BE NO REINFECTIONS AS COMPARED TO THE ALTERNATIVE TRRATMENT.

Posted from my mobile device

Kudos [?]: 107 [1], given: 29

SVP
Joined: 28 Dec 2005
Posts: 1543

Kudos [?]: 185 [0], given: 2

### Show Tags

27 Apr 2008, 11:54
ick .... i will say C ... almost went for E though

Kudos [?]: 185 [0], given: 2

Director
Joined: 06 Jan 2008
Posts: 545

Kudos [?]: 567 [0], given: 2

### Show Tags

27 Apr 2008, 12:00
C.

Kudos [?]: 567 [0], given: 2

Intern
Joined: 07 Nov 2007
Posts: 27

Kudos [?]: 5 [0], given: 0

Location: Dominican Republic

### Show Tags

27 Apr 2008, 12:11
I think it's E.

Kudos [?]: 5 [0], given: 0

CEO
Joined: 17 May 2007
Posts: 2945

Kudos [?]: 674 [0], given: 210

### Show Tags

27 Apr 2008, 23:40
I think its E. Will explain further if correct.
prasannar wrote:
The traditional treatment of strep infections has been a seven-day course of antibiotics,
either penicillin or erythromycin. However, since many patients stop taking those drugs
within three days, reinfection is common in cases where those drugs are prescribed. A
new antibiotic requires only a three-day course of treatment. Therefore, reinfection will
probably be less common in cases where the new antibiotic is prescribed than in cases
where either penicillin or erythromycin is prescribed.

Which of the following, if true, most strengthens the argument?

A. Some of the people who are allergic to penicillin are likely to be allergic to the
new antibiotic.

B. A course of treatment with the new antibiotic costs about the same as a course of
treatment with either penicillin or erythromycin.

C. The new antibiotic has been shown to be effective in eradicating bacterial
infections other than strep.

D. Some physicians have already begun to prescribe the new antibiotic instead of
penicillin or erythromycin for the treatment of some strep infections.

E. Regardless of whether they take a traditional antibiotic or the new one, most
patients feel fully recovered after taking the drug for three days.

Kudos [?]: 674 [0], given: 210

Manager
Joined: 04 Jun 2007
Posts: 57

Kudos [?]: 6 [0], given: 0

Location: United Kingdom

### Show Tags

28 Apr 2008, 06:27
The conclusion here is "reinfection will probably be less common in cases where the new antibiotic is prescribed than in cases
where either penicillin or erythromycin is prescribed" ,Any correct answer will support the premises supporting conclusion or conclusion itself.

The underlying assumption is reinfection occurs due to the bacterias(That causes infection or other bacterias that can support infection causing bacterias) that are not removed due to insufficient course times .C proves that new antibiotic will kill other bacteris as well .

I feel E is out of scope for above argument due to the fact that argument is about occurance of reinfection and not about patients feeling.

Kudos [?]: 6 [0], given: 0

VP
Joined: 10 Jun 2007
Posts: 1434

Kudos [?]: 370 [0], given: 0

### Show Tags

28 Apr 2008, 07:08
prasannar wrote:
The traditional treatment of strep infections has been a seven-day course of antibiotics,
either penicillin or erythromycin. However, since many patients stop taking those drugs
within three days, reinfection is common in cases where those drugs are prescribed. A
new antibiotic requires only a three-day course of treatment. Therefore, reinfection will
probably be less common in cases where the new antibiotic is prescribed than in cases
where either penicillin or erythromycin is prescribed.

Which of the following, if true, most strengthens the argument?

A. Some of the people who are allergic to penicillin are likely to be allergic to the
new antibiotic.

B. A course of treatment with the new antibiotic costs about the same as a course of
treatment with either penicillin or erythromycin.

C. The new antibiotic has been shown to be effective in eradicating bacterial
infections other than strep.

D. Some physicians have already begun to prescribe the new antibiotic instead of
penicillin or erythromycin for the treatment of some strep infections.

E. Regardless of whether they take a traditional antibiotic or the new one, most
patients feel fully recovered after taking the drug for three days.

Go for E
C is actually irrelevant. Even if the new antibiotic is effective, there won't be less reinfections if people don't take the antibiotics.
Close call with B for me. We have to ask ourselves "why did the people stop taking the medicine?" It is most likely because they felt ok. This means that if most feel ok after three days with the new antibiotic, then there will be less reinfections with new antibiotics.

Kudos [?]: 370 [0], given: 0

Manager
Joined: 11 Apr 2007
Posts: 143

Kudos [?]: 45 [0], given: 0

### Show Tags

28 Apr 2008, 09:47
What is the OA here?

I am between E and C but I think I'll pick C.
E doesn't say anything the probability of reinfection.

Kudos [?]: 45 [0], given: 0

Re: The traditional treatment of strep infections has been a   [#permalink] 28 Apr 2008, 09:47

Go to page    1   2   3   4   5    Next  [ 88 posts ]

Display posts from previous: Sort by