Chris Marshall16:43, Jul 05 2021 Supplied Lakes District Health Board paediatrician Dr Steve Bradley. Respiratory syncytial virus, RSV, cases have exploded in the few days in the Rotorua area. Cases of a nasty, highly contagious virus – for young children in particular – have re-emerged in the Lakes District Health Board area and the opening of the trans-Tasman bubble is copping some blame. On June 11, Rotorua Hospital had its first case of respiratory syncytial virus, RSV, in the last year and since then, cases have “exploded”, said Lakes DHB paediatrician Dr Steve Bradley. Up to seven children a day have been admitted in the last few days.