I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.; I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.; I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.; I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.; This spontaneous case was reported by a patient and describes the occurrence of BONE PAIN (I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.), ILLNESS (I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.), PYREXIA (I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.) and HEADACHE (I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.) in an elderly female patient who received mRNA-1273.815 (SPIKEVAX 2023-2024) for COVID-19 prophylaxis.     No Medical History information was reported.    On an unknown date, the patient received dose of mRNA-1273.815 (SPIKEVAX 2023-2024) (unknown route) 1 dosage form. On an unknown date, the patient experienced BONE PAIN (I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.), ILLNESS (I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.), PYREXIA (I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.) and HEADACHE (I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.). At the time of the report, BONE PAIN (I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.), ILLNESS (I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.), PYREXIA (I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.) and HEADACHE (I have only had Moderna vaccines and have had every vaccine available. Up until this vaccine, I would get very ill within about 8 hours of the shot(s) including fever, bone pain, and headaches.) outcome was unknown.        The action taken with mRNA-1273.815 (SPIKEVAX 2023-2024) (Unknown) was unknown.       Concomitant medication not reported.  Treatment medication not reported.   This case was linked to US-MODERNATX, INC.-MOD-2023-745823 (Patient Link).