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ACAPS Briefing Note: Nigeria and Niger - Cholera outbreak (17 November 2021)

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Cholera is endemic in both Nigeria and Niger. Following an increase in infections across Nigeria since June 2021, the National Centre for Disease Control activated a comprehensive cholera Emergency Operations Centre on 21 June. In Niger, the Minister of Public Health declared a cholera epidemic on 9 August.

This report highlights the impact of the cholera outbreak in the two countries considering the current conflict environment and other aggravating factors.

Key findings on Nigeria:

  • As at 24 October, there have been 93,932 suspected cases and 3,293 associated deaths in 2021. This puts the case fatality rate at 3.5%, which is higher than the annual outbreaks of the past four years.
  • The outbreak has affected 32 of the 36 states of the country.
  • Children aged 5--14 are the most affected group.
  • Poor sanitation and the consumption of contaminated water are some of the key drivers of the current outbreak.

Key findings on Niger:

  • As at 12 October, there have been 5,343 confirmed cases and 156 deaths in 2021, for a case fatality rate of 2.9%.
  • The most affected regions are Maradi, Tahoua, Zinder, Tillabéri, and Niamey.
  • The first cholera cases in Niger were reported in Maradi, which is very close to the border with Nigeria, and the cases were linked to the outbreak in northern Nigeria.