Question: The word vaccination originates from the Latin word vacca, and reflects the origin of the process. What does the word mean?
The Latin origin of the cow is WACCA. Humanity is infected with smallpox from the cow. Considering that the vaccination trial made on humans in history was tried by Edward Jenner against smallpox, it can be better understood why the British call vaccination today.
The meaning of the vaccine with the cow is based on the vaccination of people against smallpox by placing the rash parts of “cow pox” disease taken from cows into small incisions made on the skin of the people to be vaccinated.
Tha answer is : Cow. If you have an different idea, please write as commend.