Hyperinflammatory Syndromes After Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Messenger RNA vaccination in Individuals With Underlying Immune Dysregulation.

Rocco, Joseph M; Mallarino-Haeger, Christina; Randolph, Attiya H; Ray, Susan M; Schechter, Marcos C; Zerbe, Christa S; Holland, Steven M; Sereti, Irini · Clin Infect Dis · 2022

case_series · Level IV

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Abstract

The development of effective severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) messenger RNA (mRNA) vaccines has been a significant accomplishment. Adverse events are extremely rare, but continued surveillance is important, especially in at-risk populations. In 5 patients with preexisting immune dysregulation, hyperinflammatory syndromes, including hemophagocytic lymphohistiocytosis, developed after SARS-CoV-2 mRNA vaccination. Early recognition of this rare condition is essential.

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