The patient was considered to suffer from systemic inflammatory response syndrome (SIRS) and was treated with vigorous fluid resuscitation (crystalloids and colloids), oseltamivir 150 mg/day and moxifloxacin (400 mg/day, after appropriate cultures were obtained). A few hours later, she was intubated and carried to the ICU, because of refractory shock, where vasopressor therapy (noradrenaline up to 2 μg/kg/min) was administered to maintain mean arterial pressure ≥65 mmHg.