Whooping cough cases quadruple in NSW

Updated February 22 2016 - 10:08am, first published February 10 2016 - 1:10pm
Children are vaccinated at six to eight weeks of age, then at four months, six months, four years and high school. Photo: Sergey Khamidulin
Children are vaccinated at six to eight weeks of age, then at four months, six months, four years and high school. Photo: Sergey Khamidulin

NSW has recorded one of its worst whooping cough outbreaks as vaccine stocks in the private market have run dry.