Queensland Health authorities concerned for young people as state records 16 new infections Queensland Chief Health Officer Doctor Jeannette Young is still "concerned" how the state's current outbreak occurred after another double digit increase in cases on Tuesday. David WuDigital Reporter August 3, 2021 - 10:40AM Queensland Health authorities are still trying to determine how two overseas cases transmitted the virus to a teenager from Indooroopilly. Contact tracers believed two people, one from Indonesia, the other from the UK - that arrived in Brisbane on June 29 - somehow spread it to the "index" case, a teenager, before transmission across a number of schools and household family members.