Shingles
Table:
Shingles
Other names	Zoster, herpes zoster, zona

Herpes zoster blisters on the neck and shoulder
Specialty	Dermatology
Symptoms	Painful rash occurring in a stripe[1]
Complications	Postherpetic neuralgia[1]
Duration	2–4 weeks[2]
Causes	Varicella zoster virus (VZV)[1]
Risk factors	Old age, poor immune function, having had chickenpox before 18 months of age[1]
Diagnostic method	Based on symptoms[3]
Differential diagnosis	Herpes simplex, angina, insect bites[4]
Prevention	Shingles vaccine[1]
Medication	Aciclovir (if given early), pain medication[3]
Frequency	33% (at some point)[1]
Deaths	6,400 (with chickenpox)[5]

Using the given table, decide if the statement is entailed, neutral, or refuted by the data. Return the result as JSON: {"answer": "YOUR ANSWER"}.

Claim: Shingles can be diagnosed through a blood test.

answer: refuted