Journal
HUMAN VACCINES & IMMUNOTHERAPEUTICS
Volume 18, Issue 5, Pages -Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/21645515.2022.2082206
Keywords
COVID-19; SARS-COV-2; vaccination; encephalitis; neurological complications
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This research reports a rare case of an 82-year-old female who developed acute encephalitis following vaccination with a COVID-19 vaccine. The patient experienced fever and headache five days after vaccination, followed by behavior change. After receiving steroid pulse therapy, she made a full recovery.
Vaccine-related immune responses are one of the causes of encephalitis. Vaccines against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, COVID-19) have been administered worldwide due to the ongoing global pandemic; cases of SARS-CoV-2 vaccination-related encephalitis were scarcely reported. An 82-year-old female was diagnosed with acute encephalitis following her first dose of vaccination with mRNA-1273 against SARS-CoV-2. The patient presented with fever and headache five days after vaccination, followed by behavior change 17 days after vaccination. Electroencephalographic recordings revealed focal slow waves in the right frontoparietal regions. Brain MRI revealed the signal change in the right middle and posterior temporal lobe. Cerebrospinal fluid analysis showed mildly elevated protein. She responded well to steroid pulse therapy and made a full recovery. The severity of the immune response following COVID-19 vaccination may be alleviated if adequate treatment is achieved. Physicians must be alert for encephalitis after vaccination to help ensure a favorable outcome.
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