RSV October 21, 2022 10:12 am Here Are the Symptoms of RSV People infected with Respiratory Syncytial Virus (RSV) usually show symptoms 4-6 days after infection. US & World Videos 1:11 What is ‘factitious disorder imposed on another,' or FDIA? 0:34 FDA expands eye drop recall to include 27 additional products 1:15 What is dengue fever? 1:20 What to know about Legionnaires' disease 1:26 What you need to know about leprosy