Julia Kollewe

The companies in line for the biggest gains – and the shareholders who have already made fortunes

• Coronavirus – latest updates
• See all our coronavirus coverage

One in seven children – 214m – have missed more than three-quarters of in-person learning; Brazil suffers national single-day record of 1,641 Covid deaths

• Austria and Denmark to work with Israel on future Covid jabs
• Germany and France under pressure to shift Oxford vaccine
• Weekend lockdown in Paris would be ‘inhumane’, says mayor
• Brazil variant evaded up to 61% of immunity in previous Covid cases
• See all our coronavirus coverage