Psychiatric adverse reactions to COVID-19 vaccines: A rapid review of published case reports

We aimed to review the available reports of psychiatric adverse reactions to COVID vaccines. Electronic databases such as PubMed and Google scholar were combed to identify relevant reports. We found a total of 11 reports describing 14 cases of psychiatric reactions; these were mostly altered mental states, psychosis, mania, depression, and functional neurological disorder. The index case was commonly a young or middle-aged adult. All reports pertained to the use of either mRNA or vector-based vaccines. Symptom onset was within 10 days of vaccination in all cases; as such, this seems to be a high-risk period warranting vigilance.