The above diagram shows that, around 424-vaccine dose, date, and certification-related questions have been received. Among them, 43% were about the 2nd dose of vaccine. Many people did not receive sms for the second dose, and this was one of the most frequently asked questions. The same problem occurred with the booster dose. For issues regarding the certificate, many were unsure how and where to obtain their certificate, and some needed to make changes to their certificate. Around 15% of people asked general vaccination questions such as how and where to get vaccinated, and many young (under 18) people were also concerned about receiving vaccines.