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# Salmonella is a food-borne microorganism that can cause

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VP
Joined: 30 Oct 2003
Posts: 1406
Location: NewJersey USA
Salmonella is a food-borne microorganism that can cause  [#permalink]

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05 Jan 2004, 21:11
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Difficulty:

55% (hard)

Question Stats:

63% (02:12) correct 37% (02:20) wrong based on 93 sessions

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Salmonella is a food-borne microorganism that can cause intestinal illness. The illness is sometimes fatal, especially if not identified quickly and treated. Conventional Salmonella tests on food samples are slow and can miss unusual strains of the microorganism. A new test identifies the presence or absence of Salmonella by the one piece of genetic material common to all strains. Clearly, public health officials would be well advised to replace the previous Salmonella tests with the new test.

16. Which one of the following, if true, most substantially weakens the argument?

(A) The new test identifies genetic material from Salmonella organisms only and not from similar bacteria.

(B) The new test detects the presence of Salmonella at levels that are too low to pose a health to people.

(C) Salmonella is only one of a variety of food-borne microorganism that can cause intestinal illness.

(D) The new test has been made possible only recently by dramatic advances in biological science.

(E) Symptoms of Salmonella poisoning are often mistaken for those of other common intestinal illness.
VP
Joined: 30 Oct 2003
Posts: 1406
Location: NewJersey USA
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05 Jan 2004, 22:13
Let me provide some explaination for the answers you have chosen

According to B if the salmonella level is too low then people might be falsely catagorized as diseased. So the test is too sensitive?

I will wait for some more time to post the answer.
CEO
Joined: 15 Dec 2003
Posts: 3356
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05 Jan 2004, 22:24
B, I will go with the family as well. If the new test detects the level of salmonella at levels too low to pose a threat, then it's utility will be reduced as many food products, otherwise unharmful, could be recalled uselessly
VP
Joined: 30 Oct 2003
Posts: 1406
Location: NewJersey USA
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05 Jan 2004, 22:34
I guess I have waited enough. I chose B thinking that people might be subjected to unnecessary treatment eventhough they dont have any disease and might even develop complications.

The correct answer is C. I doubt it. If intestinal illness is cause by someother germ otherthan salmonella then the argument does not provide enough evidence that the old test can detect those germs as well.
Manager
Joined: 09 Jun 2003
Posts: 145
Location: work chair
Re: Salmonella is a food-borne microorganism that can cause  [#permalink]

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06 Jan 2004, 02:10
anandnk wrote:
I guess I have waited enough. I chose B thinking that people might be subjected to unnecessary treatment eventhough they dont have any disease and might even develop complications.
The correct answer is C. I doubt it. If intestinal illness is cause by someother germ otherthan salmonella then the argument does not provide enough evidence that the old test can detect those germs as well.

here is an excerpt from the princeton review (pr) =i apologise to guys from pr for copyright matter, if any of them are reading it, i just try to help people=
------------------------------------------------
we are all human, and we all have feelings. because of this, ets likes to mine its answer choices with sentimental favorites that appeal to our sense of decency or fairness. it's tough worls out there, though, and logic derives from the head, not the heart.
------------------------------------------------
yet it does not explain why the answer is c..
Manager
Joined: 12 Oct 2003
Posts: 202
Location: USA
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06 Jan 2004, 08:32
Source of the qsn pls. I chose B too!
Senior Manager
Joined: 05 May 2003
Posts: 372
Location: Aus
Re: Salmonella is a food-borne microorganism that can cause  [#permalink]

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06 Jan 2004, 08:54
May be the test is supposed to find out all the other microorganism that can cause intestinal illness.
VP
Joined: 30 Oct 2003
Posts: 1406
Location: NewJersey USA
Re: Salmonella is a food-borne microorganism that can cause  [#permalink]

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06 Jan 2004, 09:33
The source is
http://www.studa.com/newexam/list.asp?boardid=174

I hate the word "May be" this is what ETS avoids. Well everyone chose B I am not unhappy for being wrong.

Intern
Joined: 05 Aug 2014
Posts: 8
Re: Salmonella is a food-borne microorganism that can cause  [#permalink]

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14 Apr 2016, 05:26
In my opinion option B is the best.
CR & LSAT Forum Moderator
Status: He came. He saw. He conquered. -- Studying for the LSAT -- Corruptus in Extremis
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Re: Salmonella is a food-borne microorganism that can cause  [#permalink]

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26 Nov 2019, 08:20
OA added and bumping for further discussion
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Manager
Joined: 31 Jan 2019
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Concentration: General Management
GPA: 3.9
Salmonella is a food-borne microorganism that can cause  [#permalink]

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04 Dec 2019, 02:38
2
OA added and bumping for further discussion

Pre-thinking

The argument describes salmonella and the current tests used to identify its presence in food. Such tests are slow and sometimes they don't identify the presence of salmonella in foods. Another test, although, seems to be able to identify a strain that is common to all foods in which salmonella is present.

Falsification scenario: what if such strain is also present in foods that are not dangerous for the human health? Clearly the argument would break if such scenario were true.

Assumption: The strain spotted is common only to food in which salmonella is present

POE:
We can see how options C,D and E are irrelevant.
Option A is as well irrelevant because we are not concerned with other types of bacterias.
Option B states that an undesired category of food is also detected by the test. Such undesired category is represented by all the food that contains a little trace of salmonella that is not dangerous to human health.
Intern
Joined: 04 Sep 2019
Posts: 2
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04 Dec 2019, 20:30
The public health system is advised to adopt the new test because it is claimed to be good .. if we want to weaken that we have to find a choice that tells the new test is not so good .. B says that the test gives out false positives which is not a good thing given public health system will be using it and more number ppl will be diagnosed with a salmonella even through they have minor traces

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Salmonella is a food-borne microorganism that can cause   [#permalink] 04 Dec 2019, 20:30
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