Unvaccinated heads of state attending the United Nations General Assembly this week may have to settle for a piece of pizza on a sidewalk instead of fine dining at New York's restaurants.

That is how Brazil's President Jair Bolsonaro dined on his first night in New York, where no one is allowed into the city's restaurants without proof of vaccination against Covid-19.

The far-right populist is a vaccine sceptic who has bragged about not being vaccinated, saying before he left for New York that his...