The most effective way to reduce the incidence of Ross River fever in Australia would be to: A - VCE - SSCE Biology - Question 17 - 2013 - Paper 1

To effectively reduce the incidence of Ross River fever, the most appropriate strategy would be to use an attenuated form of the virus to create a human vaccine. Vaccination is a preventative measure that can help build immunity in the population, thereby decreasing the number of cases. This approach targets the root cause of the disease by protecting individuals from infection.

Other options, such as isolating humans or enforcing measures around wildlife, may not address the issue comprehensively. Moreover, increasing spending on anti-inflammatory drugs only addresses symptoms rather than preventing infection, and isolating kangaroos and wallabies does not provide a proactive solution to the disease spread.