UCL Institute of Health Informatics


New Study: Association of COVID-19 vaccines with major venous, arterial, or thrombocytopenic events

24 February 2022

A new study from IHI's Professor Spiros Denaxas and colleagues.

Vaccine image

Thromboses in unusual locations after the Coronavirus Disease 2019 (COVID-19) vaccine ChAdOx1-S have been reported, although their frequency with vaccines of different types is uncertain at a population level. The aim of this study was to estimate the population-level risks of hospitalised thrombocytopenia and major arterial and venous thromboses after COVID-19 vaccination.

Read the full study