A toddler who "didn't have an immune system" died after contracting herpes, his heartbroken parents have said.
Raffy Holliday passed away at the age of three after suffering inflammation of the brain caused by the human herpesvirus 6B (HHV-6B).
The little boy passed away at Great Ormond Street Hospital (GOSH) in March and his parents are now campaigning to increase testing for the virus in hospitals.