Is it true? Does injecting into the bloodstream, instead of muscle, cause TTS or myocarditis?

Having your vaccination go into a blood vessel instead of a muscle is unlikely to cause an adverse event, such as TTS or myocarditis. Find out more below.

Does injecting into the bloodstream, instead of muscle, cause TTS or myocarditis?

The Australian Technical Advisory Group on Immunisation (ATAGI)  has carefully reviewed the scientific reports and there is no evidence to suggest that there is a link.

Find out more details on our vaccine pages:

We also have detailed advice for medical professionals on how to safely give vaccinations.

Date last updated:

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