Where did the disease polio originate from?

Answer 1

Polio is the common name for poliomyelitis, which comes from the Greek words for grey and marrow, referring to the spinal cord, and the suffix -itis, meaning inflammation. Poliomyelitis, shortened, became polio. For a time, polio was called infantile paralysis, though it did not affect only the young. Polio is caused by one of three types of poliovirus, which are members of the Enterovirus genus. No one knows where the disease came from as there is no natural animal host. The same is true for smallpox.

According to Wikipedia:
Ancient Egyptian paintings and carvings depict otherwise healthy people with withered limbs, and children walking with canes at a young age. It is theorized that the Roman Emperor Claudius was stricken as a child, and this caused him to walk with a limp for the rest of his life. Perhaps the earliest recorded case of poliomyelitis is that of Sir Walter Scott. In 1773 Scott was said to have developed a severe teething fever which deprived him of the power of his right leg. At the time, polio was not known to medicine. A retrospective diagnosis of polio is considered to be strong due to the detailed account Scott later made, and the resultant lameness of his left leg had an important effect on his life and writing.

Answer 2

Polio is caused by the poliovirus, which is a highly contagious virus that is primarily spread through person-to-person contact. The exact origin of polio is not known, but it is believed to have existed for thousands of years. The disease became a major public health concern in the late 19th and early 20th centuries.

Answer 3

china

Answer 4

china