QUESTION TYPE: Weaken – Exception
CONCLUSION: The Ebola virus caused the plague in Athens in 430 B.C.
REASONING: The plague in Athens caused hiccups. The only disease that we know of that causes hiccups is the Ebola virus. The ancient plague shared some other symptoms with Ebola.
ANALYSIS: The fact that the two diseases shared symptoms doesn’t tell us much. Lots of diseases share symptoms.
The fact that both diseases caused hiccups sounds like stronger evidence, but it’s possible that there is more than one disease that causes hiccups. We just may not have discovered that other disease.
It may be that the other disease caused the plague, but then it disappeared over time. That would explain why we don’t know of it. Or maybe the other virus is so uncommon now that we haven’t re-discovered it.
- This shows that the diseases may have been different. If they were the same then we wouldn’t expect different symptoms.
- CORRECT. Not everyone has to experience all symptoms of a disease. One common symptom of Ebola and the Athenian plague was: death. It doesn’t matter that not everybody died, as long as some people died. Same with hiccups.
- This makes it difficult to see how the Ebola virus could have spread to Athens.
- Contagiousness is a major difference between diseases. This supports the idea that another disease caused the Athenian plague.
- This is a big difference between the two diseases.
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