Hospitalized for 5 days for Double Pneumonia; Magnesium deficiency; This spontaneous case was reported by a patient and describes the occurrence of PNEUMONIA (Hospitalized for 5 days for Double Pneumonia) and MAGNESIUM DEFICIENCY (Magnesium deficiency) in a 62-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 048L21A, 039D21A, 040A21A and 031M20A) for COVID-19 vaccination.     The patient's past medical history included Von Willebrand's disease (A bleeding disorder diagnosed 26 years ago, which has since healed) and COVID-19 in 2020. Previously administered products included for Product used for unknown indication: Influenza in September 2022. Past adverse reactions to the above products included No adverse event with Influenza. Concurrent medical conditions included Drug allergy (Epinephrine), Oil allergy (Fish oil), Platelet dysfunction (Platelet function defect in the secretion part of the blood.) since 2015, Ankles swollen (ankles were swollen intermittently which started 2 years ago), Alopecia (diagnosed 4 yrs ago), Osteoporosis, Dry eye, Vitamin D deficiency, Soap allergy (Zest soap), Drug allergy (ibuprofen) and Blepharitis (Chronic Blepharitis Rosacea). Concomitant products included CICLOSPORIN (RESTASIS) and MACROGOL 400, PROPYLENE GLYCOL (SYSTANE) for Blepharitis, TERIPARATIDE (FORTEO) for Osteoporosis, COLECALCIFEROL (VITAMIN D [COLECALCIFEROL]) and CALCIUM CARBONATE, VITAMIN D NOS (CALCIUM + VIT D) for Vitamin D deficiency.   On 17-Feb-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 17-Mar-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 12-Oct-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 30-Mar-2022, received fourth dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 30-Jul-2022, the patient experienced PNEUMONIA (Hospitalized for 5 days for Double Pneumonia) (seriousness criteria hospitalization and medically significant). 30-Jul-2022, the patient experienced MAGNESIUM DEFICIENCY (Magnesium deficiency) (seriousness criterion hospitalization). The patient was hospitalized for 5 days due to MAGNESIUM DEFICIENCY and PNEUMONIA. At the time of the report, PNEUMONIA (Hospitalized for 5 days for Double Pneumonia) and MAGNESIUM DEFICIENCY (Magnesium deficiency) outcome was unknown.            Vitamin D was taken every other week and Calcium 600 mg was taken with Vitamin D.  On 12-Oct-2021, the patient received first booster dose of Moderna COVID-19 Vaccine. On 30-Mar-2022, the patient received second booster dose of Moderna COVID-19 Vaccine.  No treatment information was provided.  Company COmment>\: This is a spontaneous case reported by a patient, concerning a 62-year-old female patient, with no relevant medical history reported, who experienced the unexpected, serious (due to hospitalization and medically significant) event of pneumonia (reported as double pneumonia), and the unexpected, serious event (Hospitalization) of Magnesium deficiency, which occurred 4 months after the fourth dose of mRNA-1273 vaccine. Patient was hospitalized for 5 days, outcome, diagnostic and treatment details were unknown. Patient previously received 3 doses of mRNA-1273 vaccine. he benefit-risk relationship of mRNA-1273 vaccine, is not affected by this report.    This case was linked to MOD-2022-670537 (Patient Link).; Sender's Comments: This is a spontaneous case reported by a patient, concerning a 62-year-old female patient, with no relevant medical history reported, who experienced the unexpected, serious (due to hospitalization and medically significant) event of pneumonia (reported as double pneumonia), and the unexpected, serious event (Hospitalization) of Magnesium deficiency, which occurred 4 months after the fourth dose of mRNA-1273 vaccine. Patient was hospitalized for 5 days, outcome, diagnostic and treatment details were unknown. Patient previously received 3 doses of mRNA-1273 vaccine. he benefit-risk relationship of mRNA-1273 vaccine, is not affected by this report.