How do you track a virus you cannot see? "That is something we do all the time," Victoria's Deputy Chief Health Officer, Dr Annaliese van Diemen, told 7.30. "It is a bit like detective work." Known as contact tracers, the people who do this work are rarely in the spotlight. Employed by state health departments, contact tracers are usually asked to investigate measles and HIV. They are highly skilled at finding where infected people have been and who they crossed paths with.
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