In the given short video you can learn about the different clinical manifestations that are associated with relevant pathological effects of the poliovirus in the body at different stages of infection. Timeline: 0:00 - Transmission of poliovirus 1:01 - Sub-clinical infection 1:20 - Abortive polio 1:49 - Non-paralytic poliomyelitis 2:18 - Paralytic poliomyelitis