Long COVID (LC), or post-COVID conditions, encompasses a diverse range of persistent health issues emerging four weeks or more after an initial COVID-19 infection. The pathogenesis of LC is not fully understood, but includes hypotheses of persistent SARS-CoV-2 infection, viral reactivations, autoimmunity, tissue damage, inflammation, and thrombosis. LC manifests as a debilitating multiorgan illness with symptoms like fatigue, malaise, fever, pain, and impairments in various systems.