CP and COVID-19: The transfusion of CP therapy for COVID-19 must follow some pre-established conditions, such as availability of a population of donors who have recovered from the disease and can donate convalescent serum; blood banks to process serum donations; availability of assays, including serological tests, to detect SARS-CoV-2 in serum and virological assays to measure viral neutralization; laboratory support for virology to carry out these tests; and standardization of phase and condition of COVID-19 patient.(48)