Systemic capillary leak syndrome (SCLS) after COVID-19 vaccination: https://www.tandfonline.com/doi/full/10.1080/21645515.2024.2372149#d1e215 "When patients have acute fever after vaccination with COVID-19 vaccines and are accompanied by hypotension, vomiting, physical discomfort, and tachycardia, in addition to common adverse reactions such as sepsis, allergic reactions, and infections, clinicians also need to pay attention to SCLS." "11 patients were recovered and were discharged, while 4 patients died."