Encephalitis associated with antibodies against leucine-rich glioma-inactivated 1 (LGI1) protein, often classified as limbic encephalitis due to its predominant involvement of the limbic system (2), is relatively rare, with an estimated annual incidence of 0.83 per 1 million individuals (3), and typically exhibits an insidious onset. Here, LGI1 is linked to viral encephalitis.