COVID-19 VIRUS TEST POSITIVE; HALF OF THE BODY COVERED WITH WELTS; REVACCINATION WITH DIFFERENT COVID-19 VACCINE; This spontaneous report received from a patient through other manufacturer (Moderna) concerned a male of unspecified age, race and ethnicity. The patient's height, and weight were not reported. The patient's concurrent conditions included: prostate cancer (1998, started coming back in 2000), and codeine allergy. The patient previously received non-company suspect vaccine, first dose, Moderna Covid-19 vaccine (elasomeran) (dose number in series 1) (form of administration, route of administration were not reported, batch number: 011A21A, expiry: unknown), dose was not reported, administered on 05-MAR-2021 for covid-19 prophylaxis. On an unspecified date in MAR-2021, the patient had severe reactions and felt under the weather for 24 hours. On an unspecified date in MAR-2021, two weeks after, he had rash around different parts of his body, arm and legs. The rashes went away and patient thought it was minor poison ivy following vaccination with Moderna Covid-19 vaccine (elasomeran) (dose number in series 1). The patient recovered from felt under the weather for 24 hours and rash around different parts of his body, arm and legs (dose number in series 1). The patient received non-company suspect vaccine, second dose, Moderna Covid-19 vaccine (elasomeran) (dose number in series 2) (form of administration, route of administration were not reported, batch number: 048A21A, expiry: unknown), dose was not reported, administered on 02-APR-2021 for covid-19 prophylaxis. On an unspecified date in APR-2021, two weeks later after the vaccination, he got more of the rash and it took 2-3 weeks to recover. The patient thought it was due to gardening and visited dermatologist (dose number in series 2). The patient recovered from got more of the rash (dose number in series 2). The patient received covid-19 vaccine ad26.cov2.s (dose number in series 3) (suspension for injection, route of admin not reported, batch number: 212A21A, expiry: UNKNOWN) dose was not reported, 1 total, third dose administered on 23-OCT-2021 for covid-19 prophylaxis. On 23-OCT-2021, the patient experienced revaccination with different covid-19 vaccine (dose number in series 3). On an unspecified date in FEB-2022, the patient experienced covid-19 virus test positive (dose number in series 3). Laboratory data included: COVID-19 virus test Positive. Concomitant medications included: bicalutamide, bisoprolol fumarate/hydrochlorothiazide, dutasteride, influenza vaccine, prednisone and relugolix. The patient additionally received Non-company suspect vaccine, fourth dose, Moderna Covid-19 vaccine (elasomeran) (dose number in series 4) (form of admin, route of admin, and were not reported, batch number: 037A22B, expiry: UNKNOWN) dose was not reported, administered on 25-MAY-2022 for covid-19 prophylaxis. On an unspecified date in 2022, the patient experienced the bad reaction and half of his body was covered in welts and he visited dermatologist following vaccination. It lasted for 4-5 weeks to go away and patient took corstione shot (dose number in series 4). The patient was prescribed creams (triamcinolone ointment 0.1%) after the second and booster doses. They put him on prednisone pills after the booster. When that didn't work, he got a Cortisone shot from the dermatologist office. The action taken with covid-19 vaccine ad26.cov2.s, and elasomeran was not applicable. The patient recovered from half of the body covered with welts, and the outcome of covid-19 virus test positive and revaccination with different covid-19 vaccine was not reported. This report was non-serious.