Nigeria's president has asked parliament to approve 895.8 billion naira ($2.18 billion) as an extra-budgetary provision to fund the purchase of COVID-19 vaccines and military equipment, according to a letter seen by Reuters. The government in February said it will draw up a supplementary budget to cover the cost of COVID-19 vaccinations, for which no provision was made in the 2021 finance bill adopted in December. Nigeria had planned to spend 13.6 trillion naira ($33.10 billion) in 2021, a 21% rise from the previous year. "The availability of COVID-19 vaccines and the procurement terms were still uncertain at the time…