GMAT Critical Reasoning (CR) | Re: Using antibiotics to kill Toxoplasma, a parasite that attacks animals.

reasoning : the argument is talking about some antibiotic that can kill some weird parasite called T. however there might be some"antibiotic based damage as well" .So a special medicine is being made to prevent this"antibiotic based damage" . the protection of this"new antibiotic" will wear off as animal matures. now we have to realize that such an"antibiotic" will only be useful to an animal who can develop cells immune to that"parasite" because
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