A groundbreaking study conducted by the University of Eastern Finland, in collaboration with the University of Helsinki, has uncovered significant changes in gene transcription within the olfactory mucosal cells of individuals with Alzheimer's disease (AD) following SARS-CoV-2 infection. Published in the Journal of Neuroinflammation, this research sheds light on the potential for exacerbated COVID-19 outcomes in AD patients due to these cellular alterations.