"Blood Traces: Uncovering Mechanistic Subtypes and Inflammatory Responses in Long COVID"

A study of over 650 UK patients hospitalized with severe COVID-19 suggests that long COVID leads to ongoing inflammation detectable in the blood, with immune system activation patterns varying based on predominant symptoms. The research, published in Nature Immunology, indicates potential for existing immune-modulating drugs to treat long COVID, highlighting the need for further investigation and understanding of the condition's complexities. Different subtypes of long COVID with distinct immune signatures were identified, potentially informing tailored clinical trials and treatments targeting immune responses and inflammation.