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A group of people with fatal H1N1 flu died after their viral infections triggered a deadly hyperinflammatory disorder in susceptible individuals with gene mutations linked to the overactive immune response, according to a study in The Journal of Infectious Diseases. Researchers at Cincinnati Children's Hospital Medical Center, the University of Alabama Birmingham (UAB) and Children's of Alabama led the study, posted online Nov. 23. They suggest people with other types of infections and identical gene mutations also may be prone to the disorder, known as reactive HLH (rHLH), or hemophagocytic lymphohistiocytosis.
HLH causes the immune system to essentially overwhelm the body with inflammation that attacks vital organs, often leading to death. Study authors raise the possibility of screening children for HLH genes to identify those who may be at risk during a viral infection.
HLH causes the immune system to essentially overwhelm the body with inflammation that attacks vital organs, often leading to death. Study authors raise the possibility of screening children for HLH genes to identify those who may be at risk during a viral infection.
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