Japan's COVID-19 infections are falling in contrast with rebounds in other parts of Asia, baffling experts.
New daily infections have slowed to fewer than one per million people, the least among major economies except China, and fatalities have fallen to zero in recent days.
South Korea, with similar vaccination coverage https://graphics.reuters.com/world-coronavirus-tracker-and-maps/vaccination-rollout-and-access, is seeing record infections. Cases remain elevated in Singapore and are rising again in Australia as authorities there relax stringent controls on movement.
One new hypothesis to explain the divergence is that the type of coronavirus dominant in Japan evolved in a way that short-circuited its ability to replicate.
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