Medical authorities in Cameroon marked World Blood Donor Day on Monday with continued pleas for blood donors, after a dramatic drop in donations over the past year. Donations fell by half in 2020, then by nearly half again so far this year, worsening the country’s blood shortage. Cameroon says it needs 400,000 pints of blood each year to meet the medical needs of its 25 million people. But in 2020, people donated just 48,000 units of blood, down from 103,000 units in 2019. With Cameroon battling a separatist crisis in two western regions, Boko Haram attacks in the north and occasional spillover of violence from the Central African Republic, the government says the need for blood to treat wounded civilians and fighters is higher than ever.