Striking a blow for China's so-called vaccine diplomacy, state media have mocked the United States for calling attention to its donation of 80 vials of Covid-19 vaccines to Trinidad and Tobago.

“Would this be selected for the Worst Public Relations Award of the Year?” the official Xinhua news agency said in an article on WeChat, which compiled more than 10 mocking tweets by other social media users under a US embassy Twitter statement announcing the donation.

Chinese state media outlets including the Global Times and China Daily took delight at the sarcastic comments generated by the embassy tweet.

“Little was given, but much was spoken on it,” Xinhua said.