No. The Australian Immunisation Handbook says [influenza vaccines do not cause influenza](https://immunisationhandbook.health.gov.au/contents/vaccine-preventable-diseases/influenza-flu#:~:text=Influenza%20vaccines%20do%20not%20cause%20influenza.).

- A sore injection site is common (more than 10% of people). Fever or muscle aches (1 to 10%) can last 1 to 2 days. These can feel like flu, but they are your body responding to the shot.
- Still unwell after 2 days, or getting worse? See your GP or pharmacist.
- Seriously unwell after your shot? Call 000 (111 in New Zealand).

[Read the full answer](https://corporatecare.com.au/blog/why-did-i-get-flu-after-receiving-the-flu-shot/)

Still stuck? Email flu@corporatecare.com.au.

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*Sources: Australian Immunisation Handbook, last updated 30/09/2026: [injection site reactions](https://immunisationhandbook.health.gov.au/contents/vaccine-preventable-diseases/influenza-flu#:~:text=Injection%20site%20reactions%20occur%20in%20more%20than%2010%25%20of%20people%20who%20receive%20standard-dose%20inactivated%20influenza%20vaccine%20intramuscularly.), [1 to 10%](https://immunisationhandbook.health.gov.au/contents/vaccine-preventable-diseases/influenza-flu#:~:text=1%E2%80%9310%25%20of%20people%20who%20receive%20standard-dose%20inactivated%20influenza%20vaccines%20will%20develop), [1 to 2 days](https://immunisationhandbook.health.gov.au/contents/vaccine-preventable-diseases/influenza-flu#:~:text=may%20last%20for%201%E2%80%932%20days), [may mimic influenza infection](https://immunisationhandbook.health.gov.au/contents/vaccine-preventable-diseases/influenza-flu#:~:text=may%20mimic%20influenza%20infection).*