The Chinese city of Shanghai started administering an inhalable COVID-19 vaccine last Wednesday in what appears to be a world first. www.pbs.org/newshour/world/china-begins-administering-inhalable-covid-19-vaccine-boosters? The vaccine, a mist that is sucked in through the mouth, is being offered for free as a...

Mass testing of the 14 million residents of Tianjin, a city near China’s capital Beijing, began after a score of COVID-19 cases were discovered. At least two cases of the Omicron variant were found. Lockdowns continue in Xi’an and...