dizziness; difficulty in standing; paresthesia; fatigue; this spontaneous report received from a consumer by a regulatory authority (ie-hpra-2022-092955) on 02-mar-2022 concerned a 34 year old male of unspecified race and ethnicity. the patient's weight was 82.628 kilograms, and height was not reported. the patient's concurrent conditions included: childhood asthma, and other pre-existing medical conditions included: childhood asthma. the patient received covid-19 vaccine ad26.cov2.s (suspension for injection, route of admin, and batch number were not reported) 0.5 ml, 1 total (first dose) administered on 27-jul-2021 for covid-19 immunization. the batch number was not reported. the company is unable to perform follow-up to request batch/lot numbers. no concomitant medications were reported. on 27-jul-2021, the patient experienced dizziness, difficulty in standing, paresthesia, and fatigue. the action taken with covid-19 vaccine ad26.cov2.s was not applicable. the patient had not recovered from dizziness, difficulty in standing, paresthesia, and fatigue. this report was serious (disability or permanent damage)