UK Health Security Agency Issues Alert on Dormant Virus Risk
The UK Health Security Agency (UKHSA) has issued a public health message concerning a highly contagious illness that can lie dormant in the body for years after initial infection. The agency warns that this virus may later reactivate, leading to a different and often painful condition.
Understanding the Link Between Chickenpox and Shingles
In a post on X, formerly known as Twitter, the UKHSA explained: "If you've had chickenpox, the virus remains dormant in your body and can reactivate later in life, causing shingles. If you or someone you know is 65 or over, read our blog post to find out how to get protected against this painful condition."
Chickenpox is a common childhood infection characterised by symptoms such as a high temperature, body aches, loss of appetite, and the appearance of small red or pink spots across the body. While most cases resolve within one to two weeks, the varicella-zoster virus responsible for chickenpox does not always leave the body entirely.
The Reactivation Process and Shingles Symptoms
After remaining dormant for several years, the virus can reactivate in approximately one in three adults, leading to shingles. The initial signs of shingles often include:
- Tingling or pain in a specific area of the skin
- Headaches
- A general feeling of being unwell
Typically, a rash develops a few days later, most commonly on the chest and stomach, though it can appear anywhere on the body.
NHS Guidance and Treatment Options
Official NHS advice recommends seeking medical attention promptly. "Try to see a pharmacist within three days of the rash appearing," the guidance states. "If you need medicine, it can help to speed up your recovery and avoid longer-lasting problems. A pharmacist can give the same antiviral medicines as a GP. They can also give advice or direct you to other medical help, if needed."
Vaccine Eligibility and Availability
The NHS offers a shingles vaccine to specific groups to help prevent the condition. Eligibility includes:
- All adults turning 64 years old
- Individuals aged 70 to 79
- Adults over 18 with severely weakened immune systems
For the latter category, this typically encompasses people with conditions such as blood cancer (e.g., leukaemia or lymphoma), HIV or AIDS, those who have recently undergone stem cell transplants, radiotherapy, chemotherapy, or organ transplants, and individuals taking medications that significantly suppress the immune system.
Important Considerations and Contraindications
While the vaccine is available to most eligible individuals, it is not suitable for everyone. It should be avoided by those who have experienced a serious allergic reaction (anaphylaxis) to a previous dose of the vaccine or to any of its ingredients.
The NHS notes that general practitioner surgeries usually contact eligible patients via letter, text message, phone call, or email to offer the vaccine. Sometimes, it may be offered during a routine GP appointment for another reason.
For further details and comprehensive information, individuals are encouraged to consult the official NHS website.
