Abstract: There is no specific treatment for COVID-19 (Corona Virus Disease 2019, COVID-19).From the perspective of immunology, since COVID-19 patients produce anti-novel coronavirus antibodies during infection, the recovered plasma can be used for passive immunotherapy. The specific antibodies in the recovered patient's plasma can neutralize the virus in the patient, thereby reducing the viral load in the patient, and ultimately reducing or improving the clinical symptoms caused by the virus. The recovered plasma is mainly used in the treatment of COVID-19 patients with rapid disease progression, severe disease and critical disease. At present, in the absence of specific drugs and vaccines, the plasma treatment of recovered patients is one of the effective means to rescue critically ill COVID-19 patients. However, the plasma collection of recovered covid-19 patients is different from that of ordinary unpaid blood donation in the collection method and collection process. In addition to meeting the standard of normal unpaid blood donors, recovered patients are also involved in a series of problems, including clinical evaluation, psychology of recovered patients, cognition, understanding and support of recovered patients' families and the public. This paper discusses how to strengthen the care and privacy protection of plasma donors in COVID-19 rehabilitation period, so as to provide Suggestions and references for blood banks to recruit plasma donors in COVID-19 rehabilitation period and improve the collection success rate.

Key words: COVID-19, Convalescen plasma donors, Care, Privacy protection