Harley1980 wrote:
SafeZone mosquito repellant has been shown in laboratory settings to be effective for twelve hours against the female anopheles mosquito, the only mosquito that transmits malaria. SafeZone, however, is not effective against mosquitoes that do not transmit malaria. The only instance in which SafeZone does not repel the female anopheles mosquito is if the mosquito can detect any blood, however small the amount, on a person’s body. Therefore, assuming one does not have any blood on their skin before applying SafeZone, one will not be able to catch malaria for up to twelve hours.
Which of the following, if true, would argue most against the use of SafeZone in areas in which malaria is endemic?
A) SafeZone mosquito repellant has been shown to cause irritation that may result in a mild rash.
B) The culex mosquito, a different species of mosquito, is found in many areas where the anopheles mosquito is found.
C) The male Anopheles mosquito also feeds on human blood and is active at the same time as the female.
D) Once a person has contracted malaria, he or she may experience both bleeding gums and a bloody nose.
E) Some mosquitoes, after biting a person covered in SafeZone, can go on to bite a person not covered in SafeZone.
In my opinion, none of the answer options work.
We need to argue against using Safezone in malaria areas. So we need to say that SafeZone would be ineffective in preventing malaria.
A) SafeZone mosquito repellant has been shown to cause irritation that may result in a mild rash.
It doesn't say that SafeZone may not be effective against malaria. Also, the option says 'mild rash' which indicates a mild side effect. We cannot rule out SafeZone because of it.
B) The culex mosquito, a different species of mosquito, is found in many areas where the anopheles mosquito is found.
No info on culex. Irrelevant.
C) The male Anopheles mosquito also feeds on human blood and is active at the same time as the female.
Again, male Anopheles mosquito is irrelevant. Though it does say that it feeds at the same time as female, it doesn't say that it leaves blood on human skin. I wouldn't assume that there would be blood on human skin.
D) Once a person has contracted malaria, he or she may experience both bleeding gums and a bloody nose.
What happens after a person contracts malaria is irrelevant. We need to avoid malaria.
E) Some mosquitoes, after biting a person covered in SafeZone, can go on to bite a person not covered in SafeZone.
We don't have enough information to understand the relevance of this.
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