4.3.1 Definition, cause and occurrence of polio
Poliomyelitis (usually called polio) is a viral disease that causes paralysis (weakness or inability to use the muscles) of the legs, arms or hands. Polio is caused by three types of viruses, namely, poliovirus types 1, 2 or 3; (note that ‘poliovirus’ is all one word). Many countries agreed in 1988 to try to eradicate polio completely from the world. The Ethiopian government has a plan to eradicate the disease in the near future. As a result of a continuing vaccination programme, polio is fortunately becoming a rare disease in Ethiopia. However, there are sometimes cases among people who come to Ethiopia from neighbouring countries such as Sudan.
4.3 Poliomyelitis (polio)
4.3.2 Mode of transmission and clinical manifestation of polio