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Pneumonitis"},{"categories":[{"measurements":[{"groupId":"OG000","value":"0"},{"groupId":"OG001","value":"0"},{"groupId":"OG002","value":"0"},{"groupId":"OG003","value":"1"}]}],"title":"Grade 2 Non-serious Solicited - Cough"},{"categories":[{"measurements":[{"groupId":"OG000","value":"0"},{"groupId":"OG001","value":"0"},{"groupId":"OG002","value":"0"},{"groupId":"OG003","value":"1"}]}],"title":"Grade 2 Non-serious Solicited - Dental caries"},{"categories":[{"measurements":[{"groupId":"OG000","value":"0"},{"groupId":"OG001","value":"0"},{"groupId":"OG002","value":"0"},{"groupId":"OG003","value":"1"}]}],"title":"Grade 2 Non-serious Solicited - Dyspnea"},{"categories":[{"measurements":[{"groupId":"OG000","value":"0"},{"groupId":"OG001","value":"0"},{"groupId":"OG002","value":"0"},{"groupId":"OG003","value":"1"}]}],"title":"Grade 2 Non-serious Solicited - Hypothyroidism"},{"categories":[{"measurements":[{"groupId":"OG000","value":"0"},{"groupId":"OG001","value":"0"},{"groupId":"OG002","value":"0"},{"groupId":"OG003","value":"1"}]}],"title":"Grade 2 Non-serious Solicited - Non-cardiac chest pain"},{"categories":[{"measurements":[{"groupId":"OG000","value":"0"},{"groupId":"OG001","value":"0"},{"groupId":"OG002","value":"0"},{"groupId":"OG003","value":"1"}]}],"title":"Grade 2 Non-serious Solicited - Pneumothorax"},{"categories":[{"measurements":[{"groupId":"OG000","value":"0"},{"groupId":"OG001","value":"0"},{"groupId":"OG002","value":"0"},{"groupId":"OG003","value":"1"}]}],"title":"Grade 2 Non-serious Solicited - Weight gain"},{"categories":[{"measurements":[{"groupId":"OG000","value":"0"},{"groupId":"OG001","value":"0"},{"groupId":"OG002","value":"0"},{"groupId":"OG003","value":"0"}]}],"title":"Total Non-serious Solicited"},{"categories":[{"measurements":[{"groupId":"OG000","value":"0"},{"groupId":"OG001","value":"0"},{"groupId":"OG002","value":"0"},{"groupId":"OG003","value":"0"}]}],"title":"Total Serious Solicited"},{"categories":[{"measurements":[{"groupId":"OG000","value":"2"},{"groupId":"OG001","value":"1"},{"groupId":"OG002","value":"7"},{"groupId":"OG003","value":"2"}]}],"title":"Total Non-serious Unsolicited"},{"categories":[{"measurements":[{"groupId":"OG000","value":"0"},{"groupId":"OG001","value":"0"},{"groupId":"OG002","value":"1"},{"groupId":"OG003","value":"0"}]}],"title":"Total Serious Unsolicited"}],"denoms":[{"counts":[{"groupId":"OG000","value":"2"},{"groupId":"OG001","value":"3"},{"groupId":"OG002","value":"7"},{"groupId":"OG003","value":"3"}],"units":"Participants"}],"description":"Solicited (expected) local and systemic Adverse Reactions (ARs) through 7 days after each injection were assessed using the clinical abnormalities section of the Food and Drug Administration (FDA) -Toxicity Grading Scale for Healthy Adult and Adolescent Volunteers Enrolled in Preventive Vaccine Clinical Trials. Unsolicited (unexpected) adverse events (AEs) through 28 days after each injection and serious adverse events (SAE's) throughout the entire study period were assessed by the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (NCI-CTCAE) version 5.0. Grade 1 is mild. Grade 2 is moderate. Grade 3 is severe. Grade 4 is life-threatening. Grade 5 is death related to adverse event.","groups":[{"description":"100 mcg (0.5 mL) messenger ribonucleic acid (mRNA)-1273 injection, intramuscular (IM) on days 1 and 29; with option for subsequent booster dose, 100 mcg (0.5 mL) mRNA-1273 injection (IM) no less than 4 weeks after day 29.","id":"OG000","title":"Hematologic Low Immunosuppression - Initial Phase"},{"description":"100 mcg (0.5 mL) messenger ribonucleic acid (mRNA)-1273 injection, intramuscular (IM) on days 1 and 29; with option for subsequent booster dose, 100 mcg (0.5 mL) mRNA-1273 injection (IM) no less than 4 weeks after day 29.","id":"OG001","title":"Hematologic Intermediate Immunosuppression - Initial Phase"},{"description":"100 mcg (0.5 mL) messenger ribonucleic acid (mRNA)-1273 injection, intramuscular (IM) on days 1 and 29; with option for subsequent booster dose, 100 mcg (0.5 mL) mRNA-1273 injection (IM) no less than 4 weeks after day 29","id":"OG002","title":"Hematologic High Immunosuppression - Initial Phase"},{"description":"100 mcg (0.5 mL) messenger ribonucleic acid (mRNA)-1273 injection, intramuscular (IM) on days 1 and 29; with option for subsequent booster dose, 100 mcg (0.5 mL) mRNA-1273 injection (IM) no less than 4 weeks after day 29.","id":"OG003","title":"Solid Tumor on Programmed Cell Death protein1/Programmed Cell Death Ligand 1 Inhibitor-Initial Phase"}],"paramType":"COUNT_OF_PARTICIPANTS","reportingStatus":"POSTED","timeFrame":"7 and 28 days after each injection and throughout the entire study period, a median of 19.5 months","title":"Number of Participants With Grades 1-5 Solicited (Expected) and/or Unsolicited (Unexpected) Adverse Events (AE's): Initial Phase","type":"PRIMARY","unitOfMeasure":"Participants"}