Four nucleic acid tests,14 days of quarantine with daily reports on body temperature,and another 14 days of isolation in future.This is part of what Roy van den Hurk had to go through to attend the Third China International Import Expo(CIIE)in Shanghai this month.Van den Hurk,Product General Manager of Milk New Zealand,one of the largest dairy farm groups in New Zealand,and an“old friend”of the CIIE,received an invitation on October 12 to attend the expo.He took a nucleic acid test,intending to depart on October 18.But he couldn’t get an air ticket and had to postpone the departure to October 21.Since the test result was valid for only one week,he had to take another test.