...This is the first trial to assess the efficacy of a vaccine against the Sudan strain, World Health Organization Director-General Tedros Adhanom Ghebreyesus said in a statement.
A recent flurry of executive orders and surprise actions by the Trump administration have roiled the international public health community, leaving healthcare workers scrambling and aid programs in peril.
On Tuesday, the global health agency said a total of nine suspected cases were reported over the last five days in the Kagera region, including eight deaths.
But in a statement, Tanzania's Health Minister Jenista Mhagama said after samples were analysed, all suspected cases were found negative for Marburg virus.
The individual, located in Brittany, had been in contact with two people who had recently returned from Central Africa. French authorities said they were working to identify all contacts.
Sweden, Germany, Belgium and the U.K. have all reported cases, although there have been no major outbreaks outside Africa. The European Centre for Disease Prevention and Control says the risk to the general population in Europe is low.