Stents placed in his heart artery on 27Jan2022, Was hospitalized for 2 to 3 days,There was a blockage; Blood count being low; Had covid twice last year after moderna vaccines were received; This spontaneous case was reported by a patient and describes the occurrence of ATRIOVENTRICULAR BLOCK (Stents placed in his heart artery on 27Jan2022, Was hospitalized for 2 to 3 days,There was a blockage) in a 68-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 034FZIA, 012A(Z)IA and 004M20A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included Stent placement on 27-Jan-2022.   On 01-Feb-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 01-Mar-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 12-Nov-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. In 2021, the patient experienced COVID-19 (Had covid twice last year after moderna vaccines were received). In January 2022, the patient experienced ATRIOVENTRICULAR BLOCK (Stents placed in his heart artery on 27Jan2022, Was hospitalized for 2 to 3 days,There was a blockage) (seriousness criterion hospitalization). On an unknown date, the patient experienced FULL BLOOD COUNT ABNORMAL (Blood count being low). The patient was hospitalized from sometime in January 2022 to sometime in January 2022 due to ATRIOVENTRICULAR BLOCK. The patient was treated with CLOPIDOGREL at an unspecified dose and frequency. At the time of the report, ATRIOVENTRICULAR BLOCK (Stents placed in his heart artery on 27Jan2022, Was hospitalized for 2 to 3 days,There was a blockage), FULL BLOOD COUNT ABNORMAL (Blood count being low) and COVID-19 (Had covid twice last year after moderna vaccines were received) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In 2021, SARS-CoV-2 test: (Positive) Positive.         The patient had no allergies.  Unspecified concomitant medications were taken by the patient.  The patient stated that he received 2 primary series doses and 1st booster dose in the recommended time frame. The patient also stated that he has a 2nd booster dose scheduled on 06-JUL-2022 at 10am but has a pre-scheduled blood test same day at 2pm and CAT scan on 07-Jul-2022 at 10am .the CAT scan is scheduled as there was an issue with his blood count being low and stated that they are trying to figure that out.The patient stated he feels that blood thinner medication caused the leakage in the blood count.The patient also stated that he has stents placed in his heart artery on 27Jan2022 for which he was hospitalized for 2 to 3 days as there was a blockage.  Company Comment:  This is a spontaneous case concerning  a  68-year-old, male patient with concurrent condition of Stent placement, who experienced the unexpected serious (hospitalization) event of Atrioventricular block and unexpected non-serious event of Full blood count abnormal and additional event of Covid-19. The event Covid-19 occurred Unspecified day on 2021. The event Atrioventricular block occurred on an unknown date of January 2022, which resulted in hospitalization and stents placed in his heart artery on 27Jan2022. On an unknown date event Full blood count abnormal occurred. It was reported that First dose of mRNA-1273 vaccine was given on 01-Feb-2021, Second dose of mRNA-1273 vaccine was given on 01-Mar-2021, while Third dose of mRNA-1273 vaccine was given on 12-Nov-2021. Patient tested positive for SARS-COV-2 Test, in Unknown month and day of 2021. The events outcome were reported as unknown. The benefit-risk relationship of mRNA-1273 COVID 19 Vaccine, is not affected by this report.; Sender's Comments: This is a spontaneous case concerning  a  68-year-old, male patient with concurrent condition of Stent placement, who experienced the unexpected serious (hospitalization) event of Atrioventricular block and unexpected non-serious event of Full blood count abnormal and additional event of Covid-19. The event Covid-19 occurred Unspecified day on 2021. The event Atrioventricular block occurred on an unknown date of January 2022, which resulted in hospitalization and stents placed in his heart artery on 27Jan2022. On an unknown date event Full blood count abnormal occurred. It was reported that First dose of mRNA-1273 vaccine was given on 01-Feb-2021, Second dose of mRNA-1273 vaccine was given on 01-Mar-2021, while Third dose of mRNA-1273 vaccine was given on 12-Nov-2021. Patient tested positive for SARS-COV-2 Test, in Unknown month and day of 2021. The events outcome were reported as unknown. The benefit-risk relationship of mRNA-1273 COVID 19 Vaccine, is not affected by this report.