An outbreak of measles, which has been raging in Likouala, North-eastern Congo since April, has already killed 22 people, the state-run radio said Friday.

The epidemic, which initially hit Liranga and Bétou, have now reached Impfondo and Epena.

Following the outbreak, the Ministry of Health Thursday launched a 5-day vaccination campaign against measles in the district.

Vaccination teams will travel throughout the localities of Likouala, which since 2009 has sheltered over 100,000 refugees from the Democratic Republic of Congo (DRC), who are fleeing inter-ethnic violence in the Equateur province.