Alero was a clinical pathologist and Senior Clinical Lecturer in the Clinical Sciences Department and the Immunology Unit between 1992 and her retirement in 2006. Alero was Research Degrees Director for the Faculty of Infectious and Tropical Diseases, was course director for the MSc in Virology for many years and was acting head of the Immunology Unit from 2005-2006.
Alero’s research centred on Epstein-Barr virus infection of B cells resulting in seminal publications identifying the aetiological link between Epstein-Barr virus and B cell lymphoproliferative disorders in immunocompromised individuals such as in post-transplant and HIV patients. Alero collaborated with Harefield Hospital and the UK Children’s Cancer Study Group to provide EBV-related cancer diagnoses.
In retirement, Alero became a docent for the Royal Academy as well as continuing to contribute to and support the scientific endeavours of her former colleagues.