Marburg has caused small, episodic outbreaks since first being identified, most recently last year in Tanzania and Ghana. It is one of the deadliest known viruses, with no approved vaccines or specific treatments.

The East African country continues to investigate the source of the outbreak, first traced among patients in health facilities.

Rwanda has declared a public outbreak of the Marburg virus, confirming nearly 30 infections and at least nine deaths as of the end of September. The Africa Centres for Disease Control and

For the first time in Rwanda’s history, its health ministry is dealing with an outbreak of Marburg virus disease, a rare but deadly hemorrhagic disease similar to Ebola – but unlike Ebola, there is no treatment or vaccines for Marburg,

Marburg virus disease has killed 11 people and sickened 25 others in Rwanda, which declared an outbreak on Sept. 27.

Rwanda says that eight people have died so far from the highly contagious Marburg virus. The announcement comes just days after the country declared an outbreak of the deadly hemorrhagic fever that has no authorized vaccine or treatment.

Rwandan health authorities are struggling to contain the outbreak of the deadly Marburg virus, which has claimed the lives of about a dozen people. Health Minister Sabin Nsanzimana said those infected are mostly healthcare workers who are usually the first responders.

While outbreaks of Marburg virus are rare, there have been several in recent years across sub-Saharan Africa. It's one of the deadliest viral diseases and can be fatal. Here's what you need to know.