The diagnosis, management and epidemiology of chickenpox (varicella).
Chickenpox is an acute, infectious disease caused by the varicella-zoster virus (VZV) and is most commonly seen in children under 10 years old. This virus can also cause shingles (herpes zoster) which tends to be more common in adults. The disease can be more serious in adults, particularly pregnant women.
For symptoms and general information on chickenpox, visit NHS Choices.
Epidemiology and data collection
Chickenpox is not a notifiable disease in England and Wales. Data on cases reported in the UK is available from the Royal College of General Practitioners Research and Surveillance Centre by sentinel GP practices in England and Wales.
Laboratory confirmation of cases of chickenpox is rarely sought as the diagnosis can, in general, be reliably made on clinical grounds. Therefore no laboratory data is available on this website.
Information and guidance for health professionals managing cases of chickenpox (varicella) is available below. Further information on clinical management of chicken pox is available on the NICE Clinical Knowledge Summaries website.
Laboratory testing for confirmation of chickenpox is not normally required but can be performed in Public Health England public health laboratories (PHLs).
There is no specific treatment for chickenpox. It is a viral infection that will therefore not respond to antibiotics.
There are 2 vaccines available to prevent chickenpox: Varilrix® (Oka-RIT) and Varivax® (Oka/Merck).