Covid-19 global updates: France and Greece mandate vaccinations for health workers amid delta variant surge

Here are some significant developments:

• The Food and Drug Administration warned Monday that the Johnson & Johnson vaccine has been linked to a rare but serious side effect in which the immune system attacks the nerves.
• World Health Organization chief Tedros Adhanom Ghebreyesus criticized wealthier countries for contemplating booster shots at a time when most of the developing world remains unvaccinated.
• Japan will send a third shipment of Oxford-AstraZeneca vaccines to Taiwan this week, as it seeks to bolster the Asian island against China. The latest dispatch means Tokyo has donated over 3.3 million shots to Taipei.
• China said it has administered over 1.39 billion vaccine doses, even as countries using Chinese-developed shots increasingly eye Western-made messenger RNA vaccines as boosters. The country logged about 50 new infections on Monday.
• Commerce Secretary Gina Raimondo said she was “pushing really hard” to make it easier for international travelers to enter the United States. But she added that the Centers for Disease Control and Prevention was nervous and that determining vaccination statuses was challenging.