FILE - In this Tuesday, April 27, 2021 file photo, a woman waits for the AstraZeneca coronavirus vaccine at the Butanda Health Center III in Western Uganda. Virus cases are surging in Uganda, making scarce hospital beds even more expensive, and concern is growing over the alleged exploitation of patients by private hospitals accused of demanding payment up front and hiking fees. (AP Photo/Patrick Onen, File)

FILE - In this Monday, May 31, 2021 file photo, people wait in the stands to receive coronavirus vaccinations at the Kololo airstrip in Kampala, Uganda. Virus cases are surging in Uganda, making scarce hospital beds even more expensive, and concern is growing over the alleged exploitation of patients by private hospitals accused of demanding payment up front and hiking fees. (AP Photo/Nicholas Bamulanzeki, File)

FILE - In this Monday, May 31, 2021 file photo, a woman receives a coronavirus vaccination at the Kololo airstrip in Kampala, Uganda. Virus cases are surging in Uganda, making scarce hospital beds even more expensive, and concern is growing over the alleged exploitation of patients by private hospitals accused of demanding payment up front and hiking fees. (AP Photo/Nicholas Bamulanzeki, File)