Explainable machine learning-based mortality risk stratification for older adults with COVID-19: pinpointing core immunological biomarkers and revealing dose-threshold effects

• by Lin Luo, Lin Wang, Hao Wang, Hui Li, Ting Liu, Sha Yu

• May 25, 2026

Permanent hypoparathyroidism following SARS-CoV-2 infection: a case report with two-year follow-up and literature review

• by Yizhi Zu, Hang Wang, Jinlin Wu, Cai Tang, Rui Han, Fang Fang

• May 25, 2026

Antibiotics May Not Help Mild COVID

A retrospective cohort study of more than 520,000 hospitalized patients found no clinically meaningful improvement in deterioration or mortality with early treatment targeting community-acquired pneumonia.

• by Andrea Surnit

• May 13, 2026

• 4 min

COVID-19, Vaccines, and Retinal Vascular Disease

A global systematic review of 173 studies found differing associations between COVID-19 infection and vaccination and retinal vascular events, with retinal artery occlusion more common after infection and retinal vein occlusion more common after vaccination.

• by Nirojini Sivachandran, MD, PhD, FRCSC

• May 14, 2026

• 2 min