New research to be presented at this year’s European Congress of Clinical Microbiology & Infectious Diseases (ECCMID) in Lisbon, Portugal (23-26 April), suggests that shorter telomeres, a feature of aging, may influence the severity of COVID-19 and the risk of dying from the disease, particularly in women. The study is by Dr. Ana Virseda-Berdices, María Ángeles Jiménez-Sousa and Amanda Fernández-Rodríguez from the Health Institute Carlos III, Madrid, Spain and colleagues.