Safety and Immune Response of COVID-19 Vaccination in Patients With Chronic Liver （CQMU）

Due to the characteristics of liver microcirculation disturbance and immune function disorder in patients with chronic liver diseases (such as autoimmune liver disease, chronic hepatitis C, liver cirrhosis, liver cancer, etc.), those patients has a higher risk of infection than the general population during the epidemic period. More attention should be paid to personal protection and disease prevention. Vaccination of COVID-19 / influenza vaccine can effectively prevent COVID-19 / influenza virus infection and delay or prevent patients from developing into critical illness and reduce mortality. The safety and effectiveness of COVID-19 / influenza vaccine in this population were evaluated in order to play a scientific and theoretical supporting role in guiding COVID-19 vaccination more scientifically, reasonably and effectively. The samples of this study were collected and tested in the second affiliated Hospital of Chongqing Medical University. Patients with contraindications for vaccination will be excluded. The detected indexes included blood routine test, liver function, COVID-19 antibody titer, antibody duration and other indexes of healthy people (control group) and patients with chronic liver disease before and after vaccination ( 1, 3, 6, 12 months after vaccination). The adverse reactions related to the vaccine were recorded.