First, the respondent has used the function of "querying nucleic acid results from other provinces and cities and uploading health treasures", and the latest nucleic acid days of the respondent can be directly obtained through the function of "querying by others";
2. If the respondent has not used "Inquiring about the nucleic acid results of other provinces and cities and uploading health treasures", he can click "Nucleic acid reservation" in "Nucleic acid vaccine inquiry service" (at the bottom of the page), and the menu below has the function of "Inquiring about other people's nucleic acid results". By using this function, investigators can also obtain nucleic acid results from other provinces and cities (through face recognition).