Prince Aisi signaled to Dr. Zeus, who then took out a small object from the medical kit he carried with him.
The front was a slender silver needle, followed by a small glass cylinder.
This glass cylinder contained clear water.
"This is the vaccine. Just inject a little into the human body and you will never contract smallpox again in your lifetime!"
"This, this, this..."
Looking left and right, it was just a bit of water!
Prince Aisi smiled, "It's quite magical, isn't it? When Zeus first mentioned it, no one believed it. By chance, at that time, Persia had a smallpox outbreak that killed thousands of people. In the end, my father had no choice but to resort to his method, and as a result, everyone who got vaccinated, even if they had close contact with smallpox patients, had no issues at all! To convince my father, Zeus even took care of the smallpox patients without any protective measures, and in the end, he was completely fine!"
It was then that Su Luo truly believed.