blurred vision; fuzzy hearing; nausea; pain in left arm; snoring sound; fainted; did not feel well; she jerked in motion in arms and leg x 3; Initial information received on 28-Oct-2020 regarding an unsolicited valid serious case received from a other health professional.   This case involves a 17 year old female patient who fainted (syncope), had blurred vision (vision blurred), fuzzy hearing (Hypoacusis), nausea, did not feel well (malaise), she jerked in motion in arms and leg x 3 (dyskinesia), had pain in left arm (pain in extremity) and had snoring, after she received vaccines DIPHTHERIA-2/TETANUS/5 AC PERTUSSIS VACCINE [ADACEL] and MENINGOCOCCAL A-C-Y-W135 (D CONJ) VACCINE [MENACTRA].  The patient had no medical history, concomitant disease or risk factor.  Medical treatment, vaccination, concomitant medication and family history were not provided.  On 28-Oct-2020, the patient received a dose of suspect MENINGOCOCCAL A-C-Y-W135 (D CONJ) VACCINE (lot number and expiry date: not reported) via an unknown route in the left arm for prophylactic vaccination.  On 28-Oct-2020, the patient received a dose of suspect DIPHTHERIA-2/TETANUS/5 AC PERTUSSIS VACCINE (lot number and expiry date: not reported) via an unknown route at an unknown administration site for prophylactic vaccination.  On 28-Oct-2020, reported as within 5 minutes of vaccination, the patient developed a serious feeling of unwell (malaise), fainted (syncope) and while coming out she jerked in motion in arms and leg x 3 (dyskinesia) and had non-serious event of snoring sounds, following the administration of MENINGOCOCCAL A-C-Y-W135 (D CONJ) VACCINE and DIPHTHERIA-2/TETANUS/5 AC PERTUSSIS VACCINE. These events (except snoring) were assessed as medically significant.  On 28-Oct-2020, soon after coming out of first syncope, the patient said she was ok and then she fainted again. She came out of this second fainting episode with serious events of blurred vision (vision blurred), fuzzy hearing (feeling abnormal) and nausea (unknown latency) following the administration of MENINGOCOCCAL A-C-Y-W135 (D CONJ) VACCINE and DIPHTHERIA-2/TETANUS/5 AC PERTUSSIS VACCINE. These events were also assessed as medically significant.  On an unknown date, the patient also reported a non-serious pain in left arm (pain in extremity) (unknown latency) following the administration of MENINGOCOCCAL A-C-Y-W135 (D CONJ) VACCINE and DIPHTHERIA-2/TETANUS/5 AC PERTUSSIS VACCINE.  It is unknown if patient's physician provided consent to be contacted It is unknown if the patient experienced any additional symptoms/events.  There were no lab data/results available.  It was not reported if the patient received a corrective treatment.  At the time of reporting, the outcome of all events were reported as unknown.; Sender's Comments: This case involves 17 year old female patient who had syncope, vision blurred, hearing abnormality, nausea, malaise, dyskinesia, pain in extremity and snoring, after vaccination with ADACEL and MENACTRA. The time to onset is compatible. Additional information regarding patient's medical history, condition at the time of vaccination, lab data excluding other etiologies would be needed for complete assessment of the case. Based upon the reported information, the role of an individual vaccines cannot be assessed.