The campaign was launched on Wednesday to vaccinate residents of Lusaka, the capital city of Zambia, against cholera.
Since the start of the current outbreak in Zambia from early October 2017, the country's health authority has reported a total of 2,672 cases, with Lusaka alone accounting for 2,558 cases. Of the 63 deaths countrywide, 58 were from Lusaka.
The WHO is currently working with the Zambia National Public Health Institute to address the underlying causes of the cholera outbreak, including clean water provision, sanitation and health education on personal hygiene.
The WHO recommends that vaccination against cholera be considered in emergencies and other high-risk scenarios, as planning is underway to vaccinate a further one million people living in known cholera hot spots across the country later this year.
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