Johnson & Johnson

Pediatric patient presented to Covid vaccination clinic for scheduled second dose of Pfizer. Inadvertently patient received 0.3ml of Janssen vaccine instead of 0.3 ml of Pfizer vaccine. Patient has had fever, headache, nausea, vomiting, muscles aches, fatigue and diarrhea off and on since vaccination. On 6/24/21 at 12:30AM went to ER due to headache, vomiting, diarrhea and weakness. Diagnosed with a bacterial infection in his stool. Given medicine for pain and vomiting. Per mom, all tests done including for concerns with blood, heart and brain were all normal.

Reporting to VAERS due to patient under 18 years of age. Patient had fever the night of administration, felt weak ("similar to flu-like symptoms") the next day and all symptoms resolved within 24 hours.

The Jansen vaccine was inadvertently administered to patient. He should have received the Pfizer dose 1. Patient said that his arm was sore for a couple of minutes, but he was fine. Explained to his mother that the Jansen vaccine was temporarily paused due to blood clots in women 18-49 years of age. Explained that the incidence of the blood clots was way less than 1% when compared to the number of patients that have received the vaccine. Told patient that if he experienced fever, chills, or body aches that he could take Tylenol or Ibuprofen. Also explained that if he experienced any type of sudden or intense headache, slurred speech, or one sided weakness to call his PCP right away..