International Long COVID Awareness Day is observed worldwide every March 15. Established in 2023, the day aims to educate the public about the long-term health effects of SARS-CoV-2 infection and encourages individuals experiencing long COVID symptoms to seek help. The campaign highlights the serious, often debilitating symptoms that can persist for months or years after the initial infection, including fatigue, shortness of breath, and cognitive dysfunction. Each year, the observance features a new theme focusing on different aspects of long COVID; for instance, in 2026, the theme centered on its impact on the cardiovascular system with the tagline “Long COVID: Every Heartbeat Counts.” The day is part of a broader initiative launched by long COVID patients and caregivers to increase visibility, provide support, and advocate for further research into the condition.