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Those caught up in West Africa's Ebola outbreak a decade ago on how best to tackle the current epidemic.
They are thought to have caught the virus before the outbreak was identified, the Red Cross says.
Bassirou Diomaye Faye also dissolved the government, creating uncertainty amid a debt crisis in the country.
The sanctions come amid growing scrutiny of Tanzania’s human rights record in recent years.
The rare species of Ebola involved - known as Bundibugyo - kills around a third of those infected and has no proven vaccine yet.
The blockade has led to shortages of fuel and food ahead of next week's Muslim holiday of Eid.
Iliman Ndiaye insists Senegal are African champions in "many people's eyes" despite a legal wrangle over the ultimate destination of the 2025 Afcon title.
The health minister has acknowledged that medics are playing catch-up with the virus after being slow to detect it.
The private world of one of Africa's most powerful political women is revealed in a BBC World Service exclusive.
An outbreak of Ebola in DR Congo involves a rare species of the virus and is in an area affected by conflict.
An outbreak in DR Congo has been declared a health emergency, with almost 250 suspected cases reported.
Rebel fighters and Rwandan troops are accused of committing atrocities after capturing the DR Congo city of Uvira in December.
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