Myanmar has reported 2 cases of vaccine-derived polio, which can develop and circulate in areas with low vaccination coverage where oral polio vaccine (OPV) is used.
Polio is a disease caused by a virus that affects the nervous system and is mainly spread by person-to-person contact. Polio can also be spread by drinking water or other drinks or eating raw or undercooked food that are contaminated with the faeces of an infected person.
Most people with polio do not feel sick. Some people have only minor symptoms, such as fever, tiredness, nausea, headache, nasal congestion, sore throat, cough, stiffness in the neck and back, and pain in the arms and legs. Most people recover completely. In rare cases, polio infection causes permanent loss of muscle function in the arms or legs (usually the legs); if there is loss of function of the muscles used for breathing or infection of the brain, death can occur.
The CDC recommends that all travellers to Myanmar be fully vaccinated against polio. In addition, adults who have been fully vaccinated should receive a single lifetime booster dose of polio vaccine.