Today on “Post Reports,” why RSV — respiratory syncytial virus — is overwhelming children’s hospitals, and what parents can do to keep their children safe.Read more:Children’s hospitals are under strain as they care for unusually high numbers of kids infected with respiratory syncytial virus, or RSV. RSV, a common cause of cold-like symptoms, started surging in late summer, months before its typical season. This surge in RSV comes as the flu is sending a record number of people to the hospital this early in the season, along with continued covid-19 cases. Health reporter Fenit Nirappil on how RSV is affecting children across the country, and what parents should look out for as we move into winter virus season.