Médecins Sans Frontières to carry out oral cholera vaccination for Burundian and Congolese refugees in Tanzania GENEVA, Switzerland, June 22, 2015/African Press Organization (APO)/ — Some 115,000 Burundian and Congolese refugees living in Tanzania will be vaccinated against cholera in a mass campaign carried out by Médecins Sans Frontières (MSF) this month. A […]