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In October 2020, as scientists raced to develop a Covid shot, the head of the WHO warned against looming "vaccine nationalism". But is vaccine inequality the reason behind Omicron's emergence?
Closed factories, clogged ports, no truck drivers -- up and down the global supply chain there are problems, raising concerns that it could disrupt the global economic recovery
After flying into the financial turbulence of the Covid pandemic, the airline sector expects passenger traffic to take off despite concerns about the industry's impact on climate change