China, U.S. should lift COVID-19 travel bans if herd immunity reached, Chinese epidemiologist says


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© Reuters. FILE PHOTO: A passenger makes his way through Ronald Reagan Washington National Airport in Arlington, Virginia BEIJING (Reuters) – China and the United States should remove all barriers to travel between the two countries if the United States achieves herd immunity for COVID-19 with 90% of its population vaccinated, potentially by August, a Chinese epidemiologist has said. The United States is the worst-hit nation in the world by case count, with nearly 30 million infections so far, though new cases have been declining. As of Sunday, 15% of the U.S. population has received at least one dose of...