Negative effect of the second dose of the BNT162b2 vaccine in a significant percentage of individuals with previous COVID infection

Affiliations

• ¹ Department of Clinical Microbiology, IML and IdISSC, Hospital Clínico San Carlos, Madrid, Spain.
• ² Department of Clinical Microbiology, IML and IdISSC, Hospital Clínico San Carlos, Madrid, Spain; Department of Medicine, Facultad de Medicina, Universidad Complutense, Madrid, Spain.
• ³ Occupational Health and Safety Service. Hospital Clínico San Carlos, Madrid, Spain.
• ⁴ Department of Clinical Microbiology, IML and IdISSC, Hospital Clínico San Carlos, Madrid, Spain; Department of Medicine, Facultad de Medicina, Universidad Complutense, Madrid, Spain. Electronic address: esther.culebras@salud.madrid.org.