The 40-year-old man, responsible for patrolling Queensland quarantine hotels, recently developed deep vein thrombosis after having a knee surgery. However, the officer was discharged and back on duty after that, the broadcaster reported on Wednesday.

Commenting on the incident, Queensland Deputy Premier Steven Miles told reporters that an urgent investigation was underway to establish whether blood clotting was linked to the Pfizer shot.

Australia recommended earlier in April inoculating people under 50 with the Pfizer vaccine rather than the one manufactured by AstraZeneca, as the latter was implicated in higher risks of blood clotting.