With regard to Julia's revelation about the human saliva, the script indicates -
That brings Patterson up short.- at which point he's scripted to ask -
Page 31 - Sheriff Patterson: 'Meaning what? We're looking for some kind of "vampire?"'
- however, in the pilot Sheriff Patterson's lines are replaced with Roger making a scoffing sound and then incredulously remarking "You’re joking."
It's quite interesting that the only mention in the script of a vampire is dropped for the pilot, unlike in the pilot for the '91 DS, which is something that bothers some viewers of the '91 DS. But then, as some have theorized, the mention of a vampire so early in the pilot for the '91 DS might be traced to/blamed on DC's penchant to often sacrifice character and suspense in favor of his "hurry up and get his vampire freak on" - but unlike with the pilot for the '91 DS, which DC not only co-wrote, he directed, DC had little to do with the actual production of this pilot. And some might say that in certain ways this pilot is all the better for it - the lack of a mention of vampires being but one of them.