https://www.thelancet.com/journals/lancet/article/PIIS0140-6...
https://www.sciencedirect.com/science/article/pii/S258953702...
Estimated impacts, to be sure, will take time for actual studies. But the activities USAID was responsible for were far more than just ‘the bare minimum’ to provide cover.
USAID was shut down on July 1st. Somehow people have survived without it for nearly 2 months. It just goes to show you how critical the "aid" it provided was.