inclusion criteria: 1. healthy people or special people aged 18 and above who meet the requirements of national new coronavirus vaccination (including but not limited to obesity (bmi ≥ 28kg/ m²). chronic metabolic diseases, chronic lung diseases, chronic cardiovascular diseases, tumors, acquired immunodeficiency syndrome, chronic kidney disease, etc.); if the researcher determines that it is necessary, the special population shall provide relevant written diagnosis certificates, records or drug prescription certificates issued by doctors; 2. the subjects voluntarily participated in the study, signed the informed consent, understood and complied with the requirements of the clinical trial scheme, and were able to understand the research procedures.

inclusion criteria: 1. healthy people or special people aged 18 and above who meet the requirements of national new coronavirus vaccination (including but not limited to obesity (bmi ≥ 28kg/ m²). chronic metabolic diseases, chronic lung diseases, chronic cardiovascular diseases, tumors, acquired immunodeficiency syndrome, chronic kidney disease, etc.); if the researcher determines that it is necessary, the special population shall provide relevant written diagnosis certificates, records or drug prescription certificates issued by doctors; 2. the subjects voluntarily participated in the study, signed the informed consent, understood and complied with the requirements of the clinical trial scheme, and were able to understand the research procedures.

inclusion criteria: healthy people or special people aged 18 and above who meet the requirements of national new coronavirus vaccination (including but not limited to obesity (bmi ≥ 28kg/ m²). chronic metabolic diseases, chronic lung diseases, chronic cardiovascular diseases, tumors, acquired immunodeficiency syndrome, chronic kidney disease, etc.); if the researcher determines that it is necessary, the special population shall provide relevant written diagnosis certificates, records or drug prescription certificates issued by doctors; the subjects voluntarily participated in the study, signed the informed consent, understood and complied with the requirements of the clinical trial scheme, and were able to understand the research procedures.

inclusion criteria: healthy people or special people aged 18 and above who meet the requirements of national new coronavirus vaccination (including but not limited to obesity (bmi ≥ 28kg/ m²). chronic metabolic diseases, chronic lung diseases, chronic cardiovascular diseases, tumors, acquired immunodeficiency syndrome, chronic kidney disease, etc.); if the researcher determines that it is necessary, the special population shall provide relevant written diagnosis certificates, records or drug prescription certificates issued by doctors; the subjects voluntarily participated in the study, signed the informed consent, understood and complied with the requirements of the clinical trial scheme, and were able to understand the research procedures.