Rebound case with sore throat and congestion including in chest; Rebound case with sore throat and congestion including in chest; Rebound case with sore throat and congestion including in chest; Rebound case with sore throat and congestion including in chest; This spontaneous case was reported by a patient and describes the occurrence of CHEST DISCOMFORT (Rebound case with sore throat and congestion including in chest), OROPHARYNGEAL PAIN (Rebound case with sore throat and congestion including in chest), NASAL CONGESTION (Rebound case with sore throat and congestion including in chest) and COVID-19 (Rebound case with sore throat and congestion including in chest) in a 42-year-old male patient who received mRNA-1273 (Spikevax) for COVID-19 vaccination.    Co-suspect product included non-company product NIRMATRELVIR, RITONAVIR (PAXLOVID) for COVID-19 treatment.    Patient was not taking any medications/products within 2 weeks of starting COVID-19 treatment.    On an unknown date, the patient received dose of mRNA-1273 (Spikevax) (unknown route) 1 dosage form and NIRMATRELVIR, RITONAVIR (PAXLOVID) (unknown route) at an unspecified dose. On 25-May-2022, the patient experienced CHEST DISCOMFORT (Rebound case with sore throat and congestion including in chest) and OROPHARYNGEAL PAIN (Rebound case with sore throat and congestion including in chest). On an unknown date, the patient experienced NASAL CONGESTION (Rebound case with sore throat and congestion including in chest) and COVID-19 (Rebound case with sore throat and congestion including in chest). At the time of the report, CHEST DISCOMFORT (Rebound case with sore throat and congestion including in chest), OROPHARYNGEAL PAIN (Rebound case with sore throat and congestion including in chest), NASAL CONGESTION (Rebound case with sore throat and congestion including in chest) and COVID-19 (Rebound case with sore throat and congestion including in chest) had not resolved.        The action taken with mRNA-1273 (Spikevax) (Unknown) was unknown.       No concomitant medication was provided by the reporter.  Device date was reported as 29-May-2022.  company comment This spontaneous case reported by a patient, concerns a 42-year-old male patient with no relevant medical history reported, who experienced the unexpected non serious AESI of COVID-19 (Rebound case with sore throat and congestion including in chest) unknown days after receiving a dose of mRNA-1273 vaccine in the covid 19 vaccination series. It was reported that the patient received Nirmatrelvir, Ritonavir (paxlovid) on an unknown date for covid 19 treatment. On 25-May-2022, the patient experienced chest discomfort and oropharyngeal pain, and on an unknown date, the patient experienced nasal congestion and covid-19.Details on  concomitant and treatment medications was provided. The events had not resolved. The benefit-risk relationship of mRNA-1273 Vaccine is not affected by this report. Event seriousness assessed per medical judgement.  Treatment medication was not provided by the reporter.; Sender's Comments: This spontaneous case reported by a patient, concerns a 42-year-old male patient with no relevant medical history reported, who experienced the unexpected non serious AESI of COVID-19 (Rebound case with sore throat and congestion including in chest) unknown days after receiving a dose of mRNA-1273 vaccine in the covid 19 vaccination series. It was reported that the patient received Nirmatrelvir, Ritonavir (paxlovid) on an unknown date for covid 19 treatment. On 25-May-2022, the patient experienced chest discomfort and oropharyngeal pain, and on an unknown date, the patient experienced nasal congestion and covid-19.Details on  concomitant and treatment medications was provided. The events had not resolved. The benefit-risk relationship of mRNA-1273 Vaccine is not affected by this report. Event seriousness assessed per medical judgement.