chest pain; he slept for 18 hours; has a low white count; it was 23 days after for when the vaccine bivalent dose was administered after the 1st dose of the primary series; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team, Program ID: The reporter is the parent.  A 17-year-old male patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 24Apr2023 at 18:00 as dose 2, single (Batch/Lot number: unknown) at the age of 17 years intramuscular, in arm for covid-19 immunisation. The patient didn't receive BNT162b2 (BNT162B2). The patient had no relevant medical history. There were no concomitant medications. Vaccination history included: BNT162b2 (Dose 1, single), administration date: 01Apr2023, when the patient was 17-year-old, for COVID-19 immunization. The following information was reported: WRONG PRODUCT ADMINISTERED (non-serious) with onset 24Apr2023 at 18:00, outcome "unknown", described as "it was 23 days after for when the vaccine bivalent dose was administered after the 1st dose of the primary series"; CHEST PAIN (non-serious) with onset 25Apr2023, outcome "recovering"; WHITE BLOOD CELL COUNT DECREASED (non-serious) with onset 25Apr2023, outcome "unknown", described as "has a low white count"; SOMNOLENCE (non-serious) with onset 25Apr2023, outcome "unknown", described as "he slept for 18 hours". The events "chest pain", "he slept for 18 hours" and "has a low white count" required physician office visit and emergency room visit. Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: No other condition and no medical history, no other products were used. No family history. The patient not administered prior vaccinations (within 4 weeks) he was aware of, but he was not sure without asking his wife.  He explained that he was actually calling on behalf of his 17-year-old son who received his first dose of the primary series with the monovalent Pfizer COVID19 vaccine. He waited for 2 weeks, however, by that time, the monovalent formulation was no longer available. He wanted to know, how long does his son need to wait in order to get the bivalent formulation?. Later on the call, caller explained that his son actually received the new bivalent formulation 17 days after his first dose. His son experienced chest pain and was told that it may have been related to the bivalent vaccine that he received. He wanted to know, what else should he look for with regards to side-effect his son experienced? He wanted to know, how long does his son need to wait in order to get the bivalent formulation? his son started getting chest pain and it may be pericarditis and myocarditis for side effects. Caller verified the information provided and clarified that in looking now it was 23 days after for when the vaccine bivalent dose was administered after the 1st dose of the primary series. 1st Pfizer COVID vaccine was administered 01Apr2023 and 2nd dose was on 24Apr2023 and that was for the bivalent vaccine and he has had no further doses. Chest pain: began on 25Apr2023; when he woke up he had severe chest pain and went to school and came right back home; the chest pain was ongoing but it was not as severe and he slept for 18 hours straight on 25Apr2023. The bivalent dose was administered right around 6:00pm in the evening and the dosage was unknown. The original pharmacist that gave him the first shot was not there and had someone filling in and he thinks they did not know what they were doing. Concomitant medications: Had nothing that he was aware of and they gave him Ibuprofen for the inflammation but that was the only thing he know of; clarified the Ibuprofen was administered last evening around 8:00pm on 26Apr2023 and he not know the dose they gave in the emergency room and he has not taken any more since. Investigations: They took blood work, did an Xray and EKG and did an EKG and blood work about the same time last night and did that on 25Apr2023 because he took him to the family doctor then and he had an x-ray last night; for results all he knows was that the patient has a low white count and the smudge cells were moderate.   The information on the batch/lot number for BNT162b2, BNT162b2 omi ba.4-5, BNT162b2 has been requested and will be submitted if and when received.