Mr Osinbajo was said to be experiencing recurrent pains in his leg hence the need for the medical operation.
Mr Yusuf said the research codenamed “Solidarity Plus” is aimed at evaluating the three drugs used in treatment of patients hospitalised of COVID-19.
The wife of the late Afenifere spokesman said she delivered a boy and a girl on October 27.
Mr Mustapha had on September 2, 2021, said the COVID-19 vaccination will be compulsory for federal civil servants once vaccines are available for everyone.
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