Case drop may show South Africa’s omicron peak has passed

South Africa’s noticeable drop in new COVID-19 cases in recent days may signal that the country’s dramatic omicron-driven surge has passed its peak, medical experts say.

Daily virus case counts are notoriously unreliable, as they can be affected by uneven testing, reporting delays and other fluctuations. But they are offering one tantalizing hint — far from conclusive yet — that omicron infections may recede quickly after a ferocious spike.

South Africa has been at the forefront of the omicron wave and the world is watching for any signs of how...