Around 30 healthcare workers including doctors, nurses and technicians at the Cardio-Neuro Centre in AIIMS have been advised to undergo quarantine after a 72-year-old man who visited the facility with neurological problem tested positive for Covid-19. The patient had reported to the emergency with brain stroke symptoms around two days back and was immediately shifted to the Neurology ward N-S5 for evaluation and treatment, PTI reported. Once admitted, the patient was subjected to radiological investigations like CT and MRI and was kept in a cubicle with other patients. He later complained of chest and respiratory distress. There was some suspicion over his respiratory problems and his sample was taken and sent for testing which came out positive for Covid-19.