One month into the latest Ebola outbreak in the Democratic Republic of the Congo, neighbouring Rwanda says it's taking "public health precautions," even though no cases have been detected within its borders.

The country's health minister says vigilance is key.

"The spread of this current outbreak came as a surprise when it was announced in mid-May. What worried most people was how such a large number of cases could have built up so quickly, when it should have been detected earlier."

Since the outbreak was declared , 808 cases have been confirmed in the DRC, including 192 deaths, according to the latest World Health Organization figures.

Neighbouring Uganda has seen 19 confirmed cases, including two deaths.