Your task is to predict the verdict of a claim based on the provided question-answer pair evidence. The possible labels are: 'Supported', 'Refuted', 'Not Enough Evidence', 'Conflicting Evidence/Cherrypicking'. Justify your answer using the provided evidence and select the correct label.

Claim: PCR (polymerase chain reaction) tests for coronavirus pierce the blood-brain barrier.

Q1: Are pcr tests for covid unsafe?
A1: Safely and easily be performed by the patient in their own car or at home.

Q2: How is a PCR test performed?
A2: Usually that means a narrow swab is placed in a person's nose or mouth to collect cells from the back of the throat.

"An upper respiratory specimen, particularly a nasopharyngeal swab, is the most common sample collected to reliably detect the virus," says Dr. Rodino. "Some lower respiratory samples like sputum are also acceptable in some settings."

Q3: Can a nasal swab damage or penetrate the blood-brain barrier?
A3: No answer could be found.
user
justification: No evidence has been provided to refute the claims state of PCR tests pierce the blood-brain barrier.

verdict: 'Not Enough Evidence'
assistant