Patient reports Adverse Reactions of lightheadedness; Patient reports Adverse Reactions of soreness of the injection site; Patient had a knot at the injection site; patient was diagnosed with Covid-19 on 1DEC2022; This spontaneous case was reported by a consumer and describes the occurrence of COVID-19 (patient was diagnosed with Covid-19 on 1DEC2022), DIZZINESS (Patient reports Adverse Reactions of lightheadedness), INJECTION SITE PAIN (Patient reports Adverse Reactions of soreness of the injection site) and INJECTION SITE MASS (Patient had a knot at the injection site) in a 56-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 801M21A, 045J21A, 021B21A and 030A21A) for COVID-19 prophylaxis.     Concurrent medical conditions included Acid reflux (oesophageal). Concomitant products included OMEPRAZOLE for Acid reflux (oesophageal), CETIRIZINE HYDROCHLORIDE (ZYRTEC R) for an unknown indication.   On 08-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 05-Apr-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 03-Dec-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 19-Apr-2022, received fourth dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 01-Dec-2022,  after starting mRNA-1273 (Moderna COVID-19 Vaccine), the patient experienced COVID-19 (patient was diagnosed with Covid-19 on 1DEC2022). On an unknown date, the patient experienced DIZZINESS (Patient reports Adverse Reactions of lightheadedness), INJECTION SITE PAIN (Patient reports Adverse Reactions of soreness of the injection site) and INJECTION SITE MASS (Patient had a knot at the injection site). The patient was treated with NIRMATRELVIR, RITONAVIR (PAXLOVID) for COVID-19, at an unspecified dose and frequency. At the time of the report, COVID-19 (patient was diagnosed with Covid-19 on 1DEC2022), DIZZINESS (Patient reports Adverse Reactions of lightheadedness), INJECTION SITE PAIN (Patient reports Adverse Reactions of soreness of the injection site) and INJECTION SITE MASS (Patient had a knot at the injection site) had resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 01-Dec-2022, SARS-CoV-2 test: Positive.     For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter did not provide any causality assessments.   With first moderna dose patient reports adverse reactions of lightheadedness. With second moderna dose patient reports no Adverse Reactions. With first moderna booster dose patient reports soreness of the injection site. Patient does not think that they warmed the vaccine enough. Patient had a knot at the injection site. The patient received second Moderna Covid 19 monovalent vaccine booster dose and had no adverse Reactions.  On 01-Dec-2022 Patient tested positive for Covid-19. Patient has not yet received a Moderna Covid-19 bivalent booster dose. It was reported that patient was treated with Paxlovid and his symptoms have subsided. Patient takes vitamins as concomitant medication.