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When is the best time to get the flu shot?

Page last updated 06 May 2019

The new seasonal flu vaccines usually become available in April. It’s important to have your flu vaccination in April or May in order to give your body time to develop protection against the flu before we come into winter.

It usually takes about two weeks after you receive your flu vaccination for the body to develop immunity. Flu season can be unpredictable and can begin from late May through to October.  

Speak with your doctor for more information and to decide on the best time to vaccinate.

Sources & Citations

  1. Australian Government, Department of Health. The Australian Immunisation Handbook 10th Edition. Influenza. Available at: (accessed 16 April 2018).
  2. ABC news. Flu vaccine 2018: Do you need it and when should you get it? Available from: (accessed 2 May 2018).