WHO seeks vaccine booster moratorium

The head of the World Health Organization called Wednesday for a moratorium on administering booster shots of COVID-19 vaccines as a way to help ensure that doses are available in countries where few people have received their first shots.

WHO Director-General Tedros Adhanom Ghebreyesus made the appeal mostly to wealthier countries that have far outpaced the developing world in numbers of vaccinations. He said richer countries have administered about 100 doses of coronavirus vaccines for every 100 people on average, while low-income countries — hampered by short supplies — have provided only about 1.5 doses per 100 people.