An automated chemiluminescent immunoassay (CLIA) detects SARS-CoV-2 neutralizing antibody levels in COVID-19 patients and vaccinees.

Objectives: A specific and sensitive automated chemiluminescent immunoassay (CLIA) was developed to detect neutralizing antibody (NAb) levels. This assay can be used for the diagnosis of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection, treatment and vaccine evaluation.

Methods: The SARS-CoV-2 receptor-binding domain (RBD) and a stabilized version of the spike ectodomain as antigens were detected by CLIA.

Clinical observation on treatment of colonic cancer with combined treatment of chemotherapy and Chinese herbal medicine.

Objective: To observe the clinical effect of combined chemotherapy and Chinese herbal medicine in treating colonic cancer.

Methods: One hundred and sixty-three patients were assigned, according to their will, to two groups, 105 in the traditional Chinese medicine treated group (Group A) and 58 in the combined treatment group (Group B). The Chinese herbal drug Zhao's Weitiao No.