👉 Smallpox is a disease caused by the bacterium Smallpox Virus, which can be transmitted between humans through contact with infected animals or surfaces. It was first discovered in 1876 and has been an important source of concern for many years due to its potential to cause severe and sometimes fatal diseases. The symptoms of smallpox are primarily skin rash that develops over several days. The rash may also include blisters on the lips, tongue, and eyelids, along with a