There is still a long battle going on with infectious diseases, the Marburg virus recently occurred in Rwanda, particularly because of its contagious and deadly nature, and precautions should be taken to suppress its spread.

Rwanda has started vaccine trials for the Marburg virus, health authorities said Sunday.

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.

Rwanda declared an outbreak of the highly contagious Marburg virus​, a deadly hemorrhagic fever that has no authorized vaccine or treatment.

Rwanda has said it will begin vaccine trials for the fatal Marburg virus, which has already killed at least 12 people in the country - most of them health workers. The east African country has received 700 doses of the vaccine from the Sabin Vaccine Institute,

There are no treatments or vaccines approved for Marburg, a virus in the same family as Ebola with a fatality rate between 24% to 88%.

In Rwanda, 11 deaths have been reported from this rare but deadly disease. Two people tested negative in Germany this week.

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

WHO has said the risk of the outbreak is “very high at the national level, high at the regional level, and low at the global level.” Marburg virus disease is highly contagious and can cause haemorrhagic fever with a fatality ratio of up to 88 per cent. There is currently no vaccine or specific treatment.