RSV quadruples asthma risk: Australian study

Children admitted to hospital for respiratory syncytial virus (RSV) infection before the age of two are at high risk of a later asthma admission, a NSW study shows.

Infection with the virus quadrupled the risk of hospitalisation for asthma before their third birthday, compared with not having experienced severe RSV, it showed.

The study of all children born in the state between 2000 and 2010 showed that nearly 32,000 were admitted with RSV (4% of the cohort) and 2405 (7.5%) of them were later hospitalised with asthma.

The findings suggested that children who had severe RSV infection