It's noisy inside the Mamprobi clinic in Accra as kids clamber over their mothers while they wait to get their measles vaccines. Outside, an area reserved for COVID-19 shots is empty. A health worker leans back in his chair and scrolls on a tablet.

One woman, waiting to get her daughter inoculated, is fully aware of the dangers of measles: the high fever, the rash, the risk to eyesight. But COVID-19? She has never heard of a single case.

The perception that COVID-19 doesn't pose a significant threat is common in Ghana's capital and elsewhere in Africa, whose youthful populace has suffered a fraction of the casualties that have driven vaccine uptake in places like Europe and America, where the disease tore through elderly populations.