Thrombosis with thrombocytopenia syndrome (TTS)

Key facts The AstraZeneca COVID-19 vaccine has been linked to a new, very rare blood-clotting condition called thrombosis with thrombocytopenia syndrome (TTS). The AstraZeneca vaccine is no longer used in Australia. Symptoms of TTS were known to have occurred between 4 and 42 days after vaccination with the AstraZeneca vaccine. TTS is diagnosed using blood tests and imaging scans — such as a CT scan. Once identified, TTS can be treated effectively in hospital. What is thrombosis with thrombocytopenia syndrome? Thrombosis with thrombocytopenia syndrome (TTS) is a very rare, new and specific syndrome. It occurs when a person has blood