Who is a Vampire?

[pippin_999]

No: HPFGUIDX 125244


Maybe one reason for JKR's "Erm, I don't think so" answer is that 
there is no universally accepted Potterverse answer to the 
question 'who is a vampire?' Like the term 'half-blood' the 
definition may depend on who is using the term. 

There could be a real life parallel with the question "Who is a 
Jew?" -In the past, sometimes a person who had renounced 
Judaism would be   considered by other Jews to be legally dead, 
and thus no longer linked to Jews, while at the same time still a 
Jew as far as racially oriented anti-Semites were concerned. 

So JKR could have meant, "Erm, *I* don't think so (but some of 
my characters might.)"

Pippin