"Uncovering Long COVID Subtypes Through Blood Traces: Implications for Targeted Treatments"

The largest UK study of hospitalized COVID patients has revealed specific blood signatures that correspond to different symptom profiles of long COVID, potentially aiding in the development of targeted treatments. The study found detectable patterns of blood markers consistent with ongoing immune system activation in long COVID patients, including markers of inflammation and complement system activation. These patterns were linked to five distinct symptom groups, offering potential for more targeted treatments such as IL-1 antagonists. The study underscores the need for a greater understanding of the complexities of long COVID and the development of specific tests and treatments for its various types.