Immunization Challenges

Sixty-one-year-old Zhang Juhua finally received his first jab of a COVID-19 vac-ine on May 25. A resident of Qingdao, Shandong Province, Zhang could have been vac-cinated earlier. However, during the first round of mass vaccination in his community in March, Zhang hesitated to take the dose as he was con-cerned about its safety and believed there was no need to do so as the control and prevention work in his city was well executed.