There are multiple definitions:

1. influenza-like illness(English)

   • defined by the World Health Organization as an acute respiratory infection with onset within the past 10 days, presenting with cough and a measured temperature of >=38 °C, and the Centers for Disease Control and Prevention as fever >=37.8 °C and cough and/or sore throat
   • CDC, WHO
   • Respiratory system
   • https://doi.org…jid.2020.09.975

2. intensive lifestyle intervention(English)

   • a structured, long-term program designed to promote significant weight loss and improve health outcomes, most famously evaluated in the Look AHEAD (Action for Health in Diabetes) trial for adults with type 2 diabetes and overweight or obesity
   • ASCVD, hsCRP, IL-6
   • Lifestyle, Adiposity, Diabetes, Atherosclerosis /atherogenic, Biomarker
   • https://doi.org…chf.2026.103296