COVID-19; Pneumonia; Heart attack; Anemic; shadow in his pancreas, which is about 2.5 cm/mm/The doctor said it feels like that is the cyst; Second dose has not been administered; Stroke; This spontaneous case was reported by a consumer and describes the occurrence of COVID-19 (COVID-19), PNEUMONIA (Pneumonia), MYOCARDIAL INFARCTION (Heart attack) and CEREBROVASCULAR ACCIDENT (Stroke) in a 74-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 011A21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concurrent medical conditions included Bladder cancer.    On 26-Feb-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 27-Feb-2021, the patient experienced COVID-19 (COVID-19) (seriousness criterion hospitalization), PNEUMONIA (Pneumonia) (seriousness criteria hospitalization and medically significant) and MYOCARDIAL INFARCTION (Heart attack) (seriousness criteria hospitalization and medically significant). In April 2021, the patient experienced CEREBROVASCULAR ACCIDENT (Stroke) (seriousness criterion medically significant). On an unknown date, the patient experienced ANAEMIA (Anemic), PANCREATIC CYST (shadow in his pancreas, which is about 2.5 cm/mm/The doctor said it feels like that is the cyst) and PRODUCT DOSE OMISSION ISSUE (Second dose has not been administered). The patient was hospitalized from 27-Feb-2021 to 04-Mar-2021 due to COVID-19, MYOCARDIAL INFARCTION and PNEUMONIA. At the time of the report, COVID-19 (COVID-19), PNEUMONIA (Pneumonia), MYOCARDIAL INFARCTION (Heart attack), CEREBROVASCULAR ACCIDENT (Stroke), ANAEMIA (Anemic), PANCREATIC CYST (shadow in his pancreas, which is about 2.5 cm/mm/The doctor said it feels like that is the cyst) and PRODUCT DOSE OMISSION ISSUE (Second dose has not been administered) outcome was unknown.        The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.   For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   Concomitant medication were not provided Treatment medication were not reported  8 hours after receiving the 1st vaccine patient went to hospital. Neurologist found a 4cm golf ball tumor on the urinary bladder which was removed. Patient had scheduled on 15-JUL-2021 for another urinary bladder surgery and doctor wanted  to make sure they have the whole cyst. The Cardiologist told him he had no blockages and his heart is good Patient had stroke around APR 2021 and Late May he had his first surgery, he was anemic and needed blood transfusion for Urinary bladder surgery Cardiologist told not to receive the second dose but  other doctors told him to receive the second dose.  Based on the current available information and temporal association between the use of the product and the start date of the events, a causal relationship cannot be excluded. The incubation period of COVID is not 24 hours. Existing comorbidities may have been a factor for the events. Unlikely, that the events are related to the vaccine. Further information is expected.; Sender's Comments: Based on the current available information and temporal association between the use of the product and the start date of the events, a causal relationship cannot be excluded. The incubation period of COVID is not 24 hours. Existing comorbidities may have been a factor for the events. Unlikely, that the events are related to the vaccine. Further information is expected.