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. 2021 Apr 15;12:633184. doi: 10.3389/fimmu.2021.633184

Figure 3.

Figure 3

Convalescent plasma. Plasma retrieved from convalescent COVID-19 patients displays both antiviral and immunomodulatory properties, including anti-inflammatory cytokines, complement blocking antibodies, auto-antibodies and anti-idiotype antibodies. However, evidence is so far contradictory, and the effectiveness of this treatment is unclear.