lost his appetite for 3 days; experiencing symptoms of COVID-19 but he tested negative/and lost his appetite/sore throat; This spontaneous case was reported by a consumer and describes the occurrence of SUSPECTED COVID-19 (experiencing symptoms of COVID-19 but he tested negative/and lost his appetite/sore throat) and DECREASED APPETITE (lost his appetite for 3 days) in a 49-year-old male patient who received mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) for COVID-19 prophylaxis.     Previously administered products included for COVID-19 prophylaxis: Moderna COVID-19 Vaccine on 15-Apr-2021, Moderna COVID-19 Vaccine on 26-Oct-2021, Moderna COVID-19 Vaccine on 31-Oct-2021 and Moderna COVID-19 Vaccine on 20-Apr-2022; for Product used for unknown indication: flu shot. Past adverse reactions to the above products included No adverse event with Moderna COVID-19 Vaccine, Moderna COVID-19 Vaccine, Moderna COVID-19 Vaccine, Moderna COVID-19 Vaccine and flu shot. Concurrent medical conditions included Diabetes, Thyroid disorder NOS, High cholesterol and Allergy NOS. Concomitant products included AZELASTINE and MOMETASONE for Allergy, METFORMIN for Diabetes, EZETIMIBE for High cholesterol, ACYCLOVIR SODIUM, SERTRALINE and VITAMINS NOS for an unknown indication.    On 20-Sep-2022, the patient received dose of mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (unknown route) 1 dosage form. On 01-Jan-2023, the patient experienced SUSPECTED COVID-19 (experiencing symptoms of COVID-19 but he tested negative/and lost his appetite/sore throat). On an unknown date, the patient experienced DECREASED APPETITE (lost his appetite for 3 days). The patient was treated with PARACETAMOL (TYLENOL) at an unspecified dose and frequency; IBUPROFEN (ADVILMED) at an unspecified dose and frequency and PSEUDOEPHEDRINE at an unspecified dose and frequency. On 10-Jan-2023, SUSPECTED COVID-19 (experiencing symptoms of COVID-19 but he tested negative/and lost his appetite/sore throat) had resolved. At the time of the report, DECREASED APPETITE (lost his appetite for 3 days) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On an unknown date, SARS-CoV-2 test: Negative.     For mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (Unknown), the reporter did not provide any causality assessments.   On 18-Mar-2021 patient received 1st dose of covid-19 vaccine with lot number 001B21A. On 15-Apr-2021 patient received 2nd dose of Covid-19 vaccine with lot number 038B21A. On 26-Oct-2021 patient received 1st booster of Covid-19 vaccine with unknown lot number. On 20-Apr-2022 patient received 2nd booster of Covid-19 vaccine with unknown lot number. On 20-Sep-2022 patient received bivalent booster. Patient did not experienced any AEs after any of the vaccines. On 01-Jan-2023 patient started experiencing symptoms of COVID-19 but he tested negative 3 times during the time he was sick, but he thought it was due to a low viral load, since he was very close to 4 neighbors that tested positive on 29Dec2023. Symptoms resolved on 09Jan2023 or 10Jan2023. Patient experienced sore throat different than a normal sore throat and plugged nose, he was blowing his nose a lot, and some coughing, he did not had fever, and lost his appetite for 3 days. Patient mentioned he could not provide additional information for his neighbors, but mentioned 3 of them had less symptoms and got the bivalent vaccine, and 1 lady did not get the new bivalent and ran with fever during 3 days, she was pretty ill, all of these patients were adults.   This case was linked to US-MODERNATX, INC.-MOD-2023-696687 (Linked Report).; Sender's Comments:  US-MODERNATX, INC.-MOD-2023-696687:Reporters case