First, WELCOME new junkie!! It's always great to greet another Sigler fan, especially one that's active in these forums
Now, regarding the order of the books: I think you've actually done a good thing to start with Infected and then move to Contagious. The Rookie has some connections to Infected & Contagious and expands on the alien worlds in the Sigler-verse and if you will be listening in on The Crypt podcast, you may want to start with The Rookie first (but it isn't critical if you don't).
However, I really think Ancestor and EarthCore are still two of my favorite Sigler works. Particularly Ancestor, but that might be because there is a ton of evil animal gore in it :) Since both Ancestor and EarthCore are unrelated to two books you have read, order is not an issue.
Most of the other books are under going sequel treatment right now, so you really have come at a great time!
Ah, curse your sudden but inevitable betrayal! ~ Hoban "Wash" Washbourne - Firefly
Don't forget the short stories.
my favorite being "Your a Damn Fool Charlie Brown"
those also do not need to be read in order. but they are
great inbetween the novels.
The Rookie first...cause its the best.....
The Platypus is a Semi-Aquatic Mammal
The nine most terrifying words in the English language are, 'I'm from the government and I'm here to help.'
- Ronald Reagan
"For future reference, I was sort of hoping for a suggestion that didn't sound like it came from that Bolshevik Muppet with all the dynamite.”
- Jim Butcher
so i saved it for dead last AND it was the best one of them all.
it does not matter though just find a vein and get to shoving it in it
hell if it taste like chicken,bring me chicken!
. prvt john bennett (major charecter) the crypt.
and after you hear/read them, pas them on, spread siglerism as far and fast as you can