laboured breathing; exhaustion; this is a spontaneous report received from a contactable reporter(s) (consumer or other non hcp) from the regulatory authority-web. the reporter is the patient. regulatory number: it-minisal02-843598. a 29 year-old male patient received bnt162b2 (comirnaty), intramuscular, administered in arm right (batch/lot number: unknown) as dose number unknown, single for covid-19 immunisation. the patient's relevant medical history and concomitant medications were not reported. the following information was reported: dyspnoea (disability) with onset 14feb2022, outcome "not recovered", described as "laboured breathing"; fatigue (disability) with onset 14feb2022, outcome "not recovered", described as "exhaustion". the patient underwent the following laboratory tests and procedures: quality of life decreased: 10/10. therapeutic measures were taken as a result of dyspnoea, fatigue. the patient stated that (the doctor instructed me to rest and take tachipirina if i experience more severe symptoms. at the moment i continue to feel ill). impact on quality of life (10/10). immediately after the administration of the covid-19 vaccine, he began to suffer from severe exhaustion and breathing problems. specifically, he could not even go up a flight of stairs no follow-up attempts are possible; information about lot/batch number cannot be obtained. no further information is expected