Epilepsy and COVID-19: Updated evidence and narrative review

•Various effects of COVID-19 on epilepsy have been studied in recent months.•This review article summarizes current evidence about epilepsy and COVID-19.•This review identifies demands for research into COVID-19 and epilepsy. The coronavirus disease 2019 (COVID-19) outbreak started in Wuhan, China, in late 2019 and rapidly spread globally. Vaccines have recently been developed and are being administered in some countries, but their widespread use is not yet sufficient; the battle against COVID-19 is protracted and people need to adapt to living under the influence of this disease. Epilepsy is a common chronic neurological condition characterized by spontaneous recurrence of unprovoked seizures. Various effects of COVID-19 on epilepsy have been studied in recent months. As clinicians, we need to keep up with daily updates in the evidence regarding interactions between COVID-19 and epilepsy. This review article summarizes the current evidence. Prospective studies on epilepsy and COVID-19 remain lacking. Most articles have comprised case reports, case series, retrospective studies, and recommendations/opinions that do not include data. However, summarizing these articles can identify the demands for research into COVID-19 and epilepsy by clarifying what is known and what remains unclear from current research.