The Covid-19 Antibody Titer of Convalescence Plasma Repeated Donors at Red Cross Indonesia of Tulungagung Regency

Convalescent plasma is plasma that is already present in the body and includes anti-SARS-CoV-2 antibodies. This plasma includes antibodies that may kill viral particles, thereby preventing virus entrance into cells. This neutralizing procedure has an effect on the improvement of a patient's clinical state after receiving convalescent plasma treatment. The possibility of this convalescent plasma therapy as a treatment for individuals infected with SARS-CoV-2 has been evaluated, and clinical trials are still ongoing. The aim of this study is to determine the antibody titer of the donor. The research was a descriptive study. Total sample was 25 repeated male donors. The data of their IgM and IgG levels was obtained from Management Information System at Red Cross Indonesia Of Tulungagung Regency. Data was presented as table. The mean IgG level of repeated convalescent plasma donors is higher than the mean IgM level. The mean IgM level of repeated convalescent plasma donors is often constant. The mean IgG level of convalescent plasma donors increased through the fifth donor and then declined from the sixth to the ninth donor. The mean result of IgM and IgG has decreased by a higher proportion than it has increased.