In this sentence the word woe is proceeded by the description "terrible war" which would suggest suffering and grief to those affected by it.
Answer:
Because people did not know that yellow fever was caused by the bite of an infected mosquito, they assumed incorrectly that people could catch the disease through touch. To help control the disease, letters were cleaned with vinegar before being sent. This did not work, because it was a false cause-and-effect relationship.
She is arguing against an accountable government and rights and against dictatorship