The Bulgarian VC fund Sofia Angels Ventures, backed by the European Investment Fund, announced that it invested in the UK-based cancer diagnostics start-up Digistain as part of the latter's USD 1m seed funding round. The value of the transaction and the size of the stake were not disclosed. Digistain, founded in 2020, operates in the US, EU, UK and India. The company applies machine learning algorithms to facilitate the provision of personalised risk reports to breast cancer patients and their physicians, helping reduce the timing and cost of treatment decisions, such as the need for chemotherapy. Digistain's novel platform technology uses infrared light to detect chemical changes occurring in tumour samples, which can accompany the progression of the breast cancer disease.