She passed out in the bathroom; At around midnight, she had cold sweating; Had high fever; Had pain in the lymph nodes on arm pit on the same side of the injection (right); This spontaneous case was reported by a consumer and describes the occurrence of LOSS OF CONSCIOUSNESS (She passed out in the bathroom) in a female patient of an unknown age who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No Medical History information was reported.   On 23-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 20-Apr-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 20-Apr-2021 at 9:00 PM, the patient experienced PYREXIA (Had high fever). On 21-Apr-2021, the patient experienced LOSS OF CONSCIOUSNESS (She passed out in the bathroom) (seriousness criterion medically significant) and COLD SWEAT (At around midnight, she had cold sweating). In 2021, the patient experienced LYMPH NODE PAIN (Had pain in the lymph nodes on arm pit on the same side of the injection (right)). At the time of the report, LOSS OF CONSCIOUSNESS (She passed out in the bathroom), COLD SWEAT (At around midnight, she had cold sweating) and PYREXIA (Had high fever) outcome was unknown and LYMPH NODE PAIN (Had pain in the lymph nodes on arm pit on the same side of the injection (right)) had not resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In 2021, Antibody test: 550 ml 550 ml (Patient was not exactly sure about the kind of test performed)..         No concomitant medications were reported.   Treatment information was not provided.  No additional vaccination details were provided by as the patient had no vaccination card with her at the time of the call. On the night of second dose the patient had high fever. Patient also reported that she went to the emergency room. For first six months after the second dose, she had pain in the lymph nodes on arm pit on the same side of the injection on right and reported that currently the pain still comes here and there.  Company comment. This spontaneous case concerns a female patient, with no reported medical history, who experienced the unexpected serious important medical event of loss of consciousness. On the night after the administration of the second dose of mRNA-1273 vaccine, the patient experienced pyrexia, cold sweat and she passed out. She presented to the emergency room, however, no medical assessment, lab data or treatment was provided for medical reviewing. The benefit-risk relationship of mRNA-1273 is not affected by this report.; Sender's Comments: This spontaneous case concerns a female patient, with no reported medical history, who experienced the unexpected serious important medical event of loss of consciousness. On the night after the administration of the second dose of mRNA-1273 vaccine, the patient experienced pyrexia, cold sweat and she passed out. She presented to the emergency room, however, no medical assessment, lab data or treatment was provided for medical reviewing. The benefit-risk relationship of mRNA-1273 is not affected by this report.