
Mia Farrow in 2009 (AFP/File/David Buimovitch)
Chad's national campaign is part of a larger vaccination effort encompassing 19 west and central African nations.
Chad was struck by a polio epidemic between 2004-2006, and continues to register cases regularly despite a 2008 vaccination campaign targeting more than 1.3 million children.
The outbreak a few years ago, which originated in Nigeria, also re-infected a number of other countries including Sudan, Somalia, Saudi Arabia and Indonesia, UNICEF said.
Polio is a highly infectious viral disease that mostly affects children under five and can lead to irreversible paralysis. It cannot be cured and is only prevented through immunization.
Film star Farrow has already visited Chad and Sudan's Darfur region several times.
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Chad was struck by a polio epidemic between 2004-2006, and continues to register cases regularly despite a 2008 vaccination campaign targeting more than 1.3 million children.
The outbreak a few years ago, which originated in Nigeria, also re-infected a number of other countries including Sudan, Somalia, Saudi Arabia and Indonesia, UNICEF said.
Polio is a highly infectious viral disease that mostly affects children under five and can lead to irreversible paralysis. It cannot be cured and is only prevented through immunization.
Film star Farrow has already visited Chad and Sudan's Darfur region several times.
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