lymph node under his right arm was swollen the size of half an orange/swelling of the lymph node in his right groin area/neck lymph nodes but he felt that there were also some enlargement in that area.; red spot on the injection site/long red streak around his arm measuring 5.5 inches long; area was very hot; This spontaneous case was reported by a consumer and describes the occurrence of INJECTION SITE WARMTH (area was very hot), VACCINATION SITE ERYTHEMA (red spot on the injection site/long red streak around his arm measuring 5.5 inches long) and LYMPHADENOPATHY (lymph node under his right arm was swollen the size of half an orange/swelling of the lymph node in his right groin area/neck lymph nodes but he felt that there were also some enlargement in that area.) in a 44-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination.     No Medical History information was reported.    On 21-Dec-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. In December 2021, the patient experienced INJECTION SITE WARMTH (area was very hot). On 21-Dec-2021, the patient experienced VACCINATION SITE ERYTHEMA (red spot on the injection site/long red streak around his arm measuring 5.5 inches long). On 23-Dec-2021, the patient experienced LYMPHADENOPATHY (lymph node under his right arm was swollen the size of half an orange/swelling of the lymph node in his right groin area/neck lymph nodes but he felt that there were also some enlargement in that area.). In December 2021, INJECTION SITE WARMTH (area was very hot) had resolved. On 26-Dec-2021, VACCINATION SITE ERYTHEMA (red spot on the injection site/long red streak around his arm measuring 5.5 inches long) had resolved. At the time of the report, LYMPHADENOPATHY (lymph node under his right arm was swollen the size of half an orange/swelling of the lymph node in his right groin area/neck lymph nodes but he felt that there were also some enlargement in that area.) was resolving.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 09-Sep-2021, SARS-CoV-2 test: positive (Positive) Consumer states that he had Covid in Sep2021 (tested positive on 09Sep2021)..     mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown) dosing was delayed on an unknown date.       No concomitant medications were provided. No treatment medication were provided.  On the day of the injection (21Dec2021), the patient noted a red spot on the injection site, where the needle went through. 2-3 days after there was a long red streak around his arm measuring 5.5 inches long. The area was very hot. This lasted for around 5 days. On 23Dec2021, he noted that the lymph node under his right arm was swollen the size of half an orange. It stayed that way for several weeks and it is just slightly swollen now. The swelling starts some and goes down. On an unspecified date, he also noted swelling of the lymph node in his right groin area. It was slightly enlarged compared to the lymph node in his under arm and it went away after a few days. He also said that he did not examine his neck lymph nodes but he felt that there were also some enlargement in that area. His pharmacist advised for him to wait until the lymph node enlargement totally went away before he gets his 2nd dose.