Interpretation of Diagnostic Test Results of Nasal Swab and Blood Sample:

A) Positive for EHv-1 in nasal swab; negative for EHv-1 in blood sample
B) Negative for EHv-1 in nasal swab; positive for EHv-1 in blood sample
C) Positive for EHv-1 in both nasal swab and blood sample
D) Negative for EHv-1 in both nasal swab and blood sample