Nigerian boy being vaccinated against polio in Kano in 2005
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Nigeria polio vaccinators shot dead in Kano

Nine female polio vaccinators have been killed in Nigeria, police have said.

Shootings took place at two health centres in the north of the country.

Lagos reporter Will Ross told BBC News that the death toll could be higher.

He explained why immunisation staff have been attacked in the past.

  • 08 Feb 2013
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