Further to the recently published review on neonatal varicella,1 we would like to draw attention to the fact that since September 2024 intramuscular varicella zoster immunoglobulin is no longer available in the UK, due to the manufacturer withdrawing the product. The latest UK Health Security Agency (UKHSA) guidelines (Post-exposure prophylaxis for varicella and shingles - GOV.UK) from October 2024 provides updated recommendations for post-exposure prophylaxis for all at-risk groups and the use of antivirals for …