Thick blood; Missed a whole week of work; second shot:-heart attack; second shot: tired; second shot- started running a temperature; second dose- throwing up; Sinus infection; second dose-coughing; second dose- blood clots; left arm was hurting; This spontaneous case was reported by a consumer and describes the occurrence of MYOCARDIAL INFARCTION (second shot:-heart attack) and THROMBOSIS (second dose- blood clots) 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.     The patient's past medical history included Renal failure. Concurrent medical conditions included Dialysis and Blood disorder.   In January 2021, the patient received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On an unknown date, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. In January 2021, the patient experienced VACCINATION SITE PAIN (left arm was hurting). On 14-Feb-2021, the patient experienced SINUSITIS (Sinus infection), COUGH (second dose-coughing) and VOMITING (second dose- throwing up). On 15-Feb-2021, the patient experienced FATIGUE (second shot: tired) and PYREXIA (second shot- started running a temperature). In February 2021, the patient experienced THROMBOSIS (second dose- blood clots) (seriousness criteria death and medically significant). On 21-Feb-2021, the patient experienced MYOCARDIAL INFARCTION (second shot:-heart attack) (seriousness criteria death and medically significant). On an unknown date, the patient experienced BLOOD DISORDER (Thick blood) and IMPAIRED WORK ABILITY (Missed a whole week of work). The patient was treated with IBUPROFEN for Fever, at an unspecified dose and frequency and ONDANSETRON (ZOFRAN MELT) for Stomach pain, at an unspecified dose and frequency. On 21-Feb-2021, SINUSITIS (Sinus infection), COUGH (second dose-coughing), VOMITING (second dose- throwing up) and FATIGUE (second shot: tired) outcome was unknown and PYREXIA (second shot- started running a temperature) had resolved with sequelae. The patient died on 21-Feb-2021. The reported cause of death was blood clots leading to heart attack. An autopsy was not performed. At the time of death, BLOOD DISORDER (Thick blood), IMPAIRED WORK ABILITY (Missed a whole week of work) and VACCINATION SITE PAIN (left arm was hurting) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In February 2021, Body temperature: abnormal (abnormal) started running a temperature. On an unknown date, Blood test: normal (normal) normal.         Patient took first dose of moderna vaccine in JAN 2021 and second dose in FEB 2021.  Patients body temperature was 98-104 after taking ibuprofen for few days.  Patient's blood was thick as pancake syrup.  Patient was on dialysis for 5 years before the shot.  On 16 FEB 2021 Dialysis and blood work was done.   Patient went to doctor  on 19 FEB 2021.  Patient missed her work a week from 15 FEB 2021 to 21 FEB 2021.  Very limited information regarding this event/s has been provided at this time.  Further information has been requested.   This case was linked to MOD-2021-256627 (Patient Link).; Sender's Comments: Very limited information regarding this event/s has been provided at this time.  Further information has been requested.; Reported Cause(s) of Death: Blood clots leading to heart attack