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As of 8 September WHO reported
2220 suspected/confirmed cases of cholera including 40 deaths (case fatality rate 1.8%) on the Tanzanian mainland, so far this year (2017). Zanzibar reported 358 suspected/confirmed cases and four deaths (case fatality rate 1.1%), as of 27 August 2017.
Since the start of the cholera outbreak on 6 August 2015, a cumulative 26 199 cases including 411 deaths (case fatality rate 1.6%), and 4688 cases including 72 deaths (case fatality rate 1.5%), were reported from the mainland and Zanzibar, respectively. At least 115 districts in 23 out of 25 regions on the Tanzanian mainland have been affected.
Cholera is rare in travellers, mild cases may present as travellers' diarrhoea.
All travellers should be given advice on maintaining good food, water and hand hygiene, see traveller's diarrhoea, safe eating and drinking and water purification.
Travellers should be advised on basic steps in self - treating diarrhoea, particularly maintaining hydration.
Vaccination should be considered under the following circumstances and is dependant on the individual risk assessment:
Volunteers/aid workers/medical personnel in disaster relief situations where cholera outbreaks likely.
Those travelling to work in slums/refugee camps, areas affected by natural disasters, or countries experiencing cholera outbreaks (see current notes on the country concerned).
