 This study found that many people experience long-term symptoms after being infected with COVID-19. These symptoms included difficulty breathing, fatigue, chest pain, headaches, abdominal discomfort, muscle aches, cognitive impairment and depression. Additionally, these symptoms often occur together and can vary depending on age, gender and severity of the virus. This article was authored by Maxine Taquette, Quintender Kahn, Sierra Luciano and others.