| C3b | Complement component 3 |
| COVID-19 | Coronavirus disease 2019 |
| CRP | C-reactive protein |
| FcR | Fragment crystallizable region |
| F FcεRI | Fragment crystallizable epsilon region RI |
| FcεRII | Fragment crystallizable epsilon region RII |
| FcgRI | Fragment crystallizable gamma region RΙ |
| FcgRII | Fragment crystallizable gamma region ΙI |
| IgE | Immunoglobulin E |
| Ι IL-6 | Interleukin-6 |
| IgE | Immunoglobulin G |
| SCF | Stem cell factor |
| TNFα | Tumor necrosis factor-alpha |
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