Rebound Covid .. I had a negative test on day 11 Starting getting sniffles on day 14.. Cold seemed worse on day 15 and tested positive again on day 15; This spontaneous case was reported by a consumer and describes the occurrence of COVID-19 (Rebound Covid .. I had a negative test on day 11 Starting getting sniffles on day 14.. Cold seemed worse on day 15 and tested positive again on day 15) in a 65-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination.  Co-suspect product included non-company product NIRMATRELVIR, RITONAVIR (PAXLOVID) for COVID-19 treatment.  Concurrent medical conditions included Drug allergy (Allergy to unknown past drug was reported).  On 18-Nov-2021, the patient received dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 06-May-2022, the patient started NIRMATRELVIR, RITONAVIR (PAXLOVID) (unknown route) 1 dosage form. On an unknown date, the patient experienced COVID-19 (Rebound Covid .. I had a negative test on day 11 Starting getting sniffles on day 14.. Cold seemed worse on day 15 and tested positive again on day 15). At the time of the report, COVID-19 (Rebound Covid . I had a negative test on day 11 Starting getting sniffles on day 14. Cold seemed worse on day 15 and tested positive again on day 15) had not resolved.  DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In May 2022, SARS-CoV-2 test: negative (Negative) had a negative test on day 11 and positive (Positive) tested positive again on day 15.  The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown) was unknown.  No concomitant medications were reported. The patient was not taking any other medication/product within two weeks of starting COVID-19 treatment. The patient had rebound COVID. Patient had a negative test on day 11. Started getting sniffles on day 14 and cold seemed worse on day 15 and tested positive again on day 15. Device date was reported as 18-May-2022.  Company Comment: This is a spontaneous case concerning a 65-year-old female patient with reported medical history, who experienced the unexpected non-serious adverse event of special interest, COVID-19 which occurred on an unknown date after receiving a dose of mRNA-1273 Vaccine and after receiving the co-suspect, non-company product Nirmatrelvir, Ritonavir (Paxlovid). As reported, the patient had a negative test on day 11. Started getting sniffles on day 14. Cold became worse and tested positive again on day 15, no other clinical or treatment details were given. The benefit-risk relationship of mRNA-1273 Vaccine is not affected by this report.; Sender's Comments: This is a spontaneous case concerning a 65-year-old female patient with reported medical history, who experienced the unexpected non-serious adverse event of special interest, COVID-19 which occurred on an unknown date after receiving a dose of mRNA-1273 Vaccine and after receiving the co-suspect, non-company product Nirmatrelvir, Ritonavir (Paxlovid). As reported, the patient had a negative test on day 11. Started getting sniffles on day 14. Cold became worse and tested positive again on day 15, no other clinical or treatment details were given. The benefit-risk relationship of mRNA-1273 Vaccine is not affected by this report.