"New insights into long COVID symptoms and prevalence revealed by studies and patients"

A national study involving Portland-based researchers and Maine patients has identified 12 core symptoms that are most associated with long COVID, including brain fog, fatigue, post-exertional malaise, dizziness, heart palpitations, loss of smell or taste, and chest pain. The research found that patients who were unvaccinated, who contracted COVID-19 before the 2021 arrival of the omicron strain or who were reinfected with the virus were more likely to contract long COVID-19 and have more severe symptoms. The study is seen as an important step toward understanding the disease and, ultimately, treating it.