Answer:
virus originated in China, and later humans passed it to pigs near Fort Riley, KS. Inside the swine, the virus probably mutated into its more deadly form before being reintroduced to the American population.
Explanation:
Some people lost hope in their religion and formed new ides and started following logic. This cultural revolution spread around the world and people formed new beliefs. It influenced many legal codes and governmental structures that are still in place today.