Italy joined the U.S. in mandating coronavirus tests after infected passengers from China landed in Milan, but experts say the measures are probably ineffective.
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“There isn’t real-world scientific evidence to support these measures,” said Karen Grépin, a professor at the University of Hong Kong who specializes in global health policy. She added that the situation was very different from three years ago, with many countries having access to vaccines and with significant parts of their population already exposed to the virus.would help slow down virus transmission amid the possibility of new variants emerging.
Health-care experts noted that comparably strict measures did not stop the omicron variant from spreading last winter. Officials in Singapore and Australia — two countries that shut their borders during earlier stages of the pandemic — said this week that they had no plans to impose additional restrictions on travelers from China.
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