Signs of Potentially Fatal Four-Week Illness to Spot Following UKHSA Alert Friday, January 23, 2026 shingles ukhsa chickenpox vaccine rash elderly health symptoms pain postherpetic Britons are being urged to recognise the warning signs of shingles, a condition that can last up to four weeks and is often more serious than many realise. The UK Health Security Agency (UKHSA) has highlighted that shingles … Read More