The Emperor nodded his head in satisfaction after hearing this. Then, he rewarded each of them with 10,000 taels of silver.
Then, he said, "Go back and study it carefully. See if you can stop smallpox as a whole. Otherwise, once it erupts, it will be a disaster that is no smaller than a natural disaster."
Hearing him say this, Gu Chengrui suddenly thought of cowpox. He might as well take the opportunity to suggest this so that it does not happen again.
"I have an idea, but it's not mature yet."
"Oh, tell me." After the Emperor finished speaking, he looked at him expectantly.
"I discovered that smallpox will become weaker and weaker as it spreads.
"For example, this time, the first few people who were infected with smallpox were in a much more severe condition, and the time needed to treat them was also much longer.
"Moreover, any smallpox transmitted through young adults would accelerate the weakening of the smallpox's toxicity.