China launches Covid vaccine inhaled through the mouth

China does not have vaccine mandates but wants more people to get booster shots before it relaxes strict pandemic restrictions

The Chinese city of Shanghai has started administering an inhalable Covid-19 vaccine in what appears to be a world first (Andy Wong/AP)

The Chinese city of Shanghai has started administering an inhalable Covid-19 vaccine in what appears to be a world first.

The vaccine, a mist that is sucked in through the mouth, is being offered free of charge as a booster dose for previously vaccinated individuals, according to an announcement posted on an official city social media account.