Austrian researchers identify persistent immune protein as biomarker for complications of Long COVID-19.

Researchers identified PTX-3 as a potential biomarker for lasting tissue damage, chronic immune activation, and post-infection complications, shedding light on Long COVID and ME/CFS biological mechanisms.

Source: https://archive.li/WB5AE

Study: https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1672485/full