Israeli researchers say the study only had a small sample size of people infected with the South African variant because of its rarity in Israel.
Guelleh has received more than 98% of the 177,391 votes cast in the Horn of Africa nation, defeating his sole rival, businessman Zakaria Ismail Farah.
The African nations's main opposition parties boycotted the vote, leaving Zakaria Ismail Farah, a 56-year-old political newcomer and importer of cleaning products, as long-time ruler Guelleh's only challenger.
Clashes between members of Massalit and Arab communities since Saturday in El Geneina city have displaced thousands in the latest outbreak of violence since January.
Young people in eastern Democratic Republic of Congo have been protesting since Monday against the UN’s failure to prevent a wave of civilian killings by armed groups.
Egypt’s President Abdel Fattah el Sisi warns of conflict over Grand Ethiopian Renaissance Dam that Addis Ababa is building on the Blue Nile tributary, which Cairo and Khartoum fear will imperil their supply.
France says archives of former president Francois Mitterrand will help understand its role in 1994 Rwanda genocide, after a recent report concluded Paris owes responsibility on massacres of some 800,000 people.
Addis Ababa says dam's massive reservoir will continue to be filled in the upcoming rainy season, a day after talks between diplomats of Ethiopia, Egypt and Sudan on GERD operations failed.
Talks between Egypt, Ethiopia and Sudan on Addis Ababa's contested dam on river Nile conclude without breakthrough in capital of Democratic Republic of Congo.
At least 100 civilians killed in volatile area claimed by both Somali and Afar regions, officials say, highlighting woes facing PM Abiy Ahmed that extend well beyond ongoing conflict in Tigray region.
Cabinet decision still needs approval of joint meeting of the contry's sovereign council and cabinet, which serves as its interim legislative body.
The violence poses a challenge to efforts by Sudan’s transitional government to end decades-long rebellions in areas like Darfur, where conflict often falls along ethnic lines.
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