Nigeria's oracle, President Buhari appears in public amid health concerns

Nigeria's President Muhammadu Buhari has made a rare public appearance amid ongoing questions about the state 
of his health. Photos and a video posted on Twitter showed Mr Buhari, 74, attending Friday prayers at a mosque in the presidential villa in the capital Abuja.

The footage showed the president shaking hands with 
fellow worshippers.

Aides say Mr Buhari has been resting after receiving 
medical treatment in London for an undisclosed illness.

Earlier this week, the president missed his third cabinet 
meeting in a row, stoking further debate about his condition.

Until Friday, he had not been seen in public for two weeks.

Mr Buhari returned from the UK in March after seven 
weeks of sick leave. When he returned home he said he had never been so ill in his life.

Since then he has rarely been seen outside of his official
residence. His wife, Aisha, has said that her husband is
 not as sick as is being perceived.

Correspondents say a power vacuum in Nigeria, or even
 the perception of it, could have damaging effects.

The country is at a crucial stage as it struggles to
 emerge from recession.

Last week, presidential spokesman Garba Shehu said Mr Buhari was "taking things slowly, as he fully recovers from the long period of treatment".


Buhari's unhealthy start to 2017

19 January - Leaves for UK on "medical vacation"

5 February - Asks parliament to extend medical leave

10 March - Returns home but does not resume work
immediately

26 April - Misses second cabinet meeting and is "working 
from home"

28 April - Misses Friday prayers

3 May - Misses third cabinet meeting


5 May - Appears at Friday prayers in Abuja