I don't know if you mean contracting it as a player character or those who have lycanthropy or vampirism in general, so...
There is quite a bit of generic stuff to do with lycanthropy and vampirism, though it mostly
seems to do with Helia and Astarion.

Lycanthropy
There are lots of werewolf sounds of different skills (bloodfest, roar) and states (werewolf in pain, victorious, combat, etc).

You can play as a werewolf if you select Helia as your Origin character. (development still in progress)

There are some dialog notes to do with the goblin wolf (worg?) pens in the first act, and how it relates to "Helia, the werewolf origin":
"Panicked and surprised - the people they were going to ask for help to fight the werewolf are dead."

"Panicked, the kids run to the room with the goblin warriors and call for help, because the bear / Helia has escaped. After that they disappear"

There are a few strings to do with "werewolf transformation", especially where Halsin is kept (to do with meeting Halia, I suppose).

There are some camp and relationship dialog notes: " 'pup' - the character you've decided to bed is a werewolf"
This note is quite amusing: "werepup = werewolf pup, not a typo"

Werewolves are in the game, but they aren't playable atm:
Code
new entry "Werewolf"
type "Character" <- note, this does not mean player character, just any type of "character" found in the game (kuo-toa, hobgoblin boss, myconid, etc)
using "_Humanoid"
data "Strength" "15"
data "Dexterity" "13"
data "Constitution" "14"
data "Intelligence" "10"
data "Wisdom" "11"
data "Charisma" "10"
data "Armor" "11"
data "Vitality" "58"
data "StepsType" "Clawed"
data "ArmorType" "None"


Effects for attacks with claws, multi attack etc.

Vampirism
There is a lot of stuff here, mostly about Astarion (and the vampire hunter) and the crypts in act 2 (vampires can be allies of the party, there is a vampire boss, spawns, and thralls).

Lots of notes on types of vampires mainly in act 2: "player knows for a fact that they are vampire thralls", "Player's face has already discuss grave robber fate with the cliff vampire thralls", "Vampire in the lower crypt knows that players are not allied with skeletons", "Astarion-companion gets his Vampire Bite after this flag is set (in a dialog or outside it)" etc.

You can play as a vampire spawn if you select Astarion as your Origin character. (unavailable in EA)

Vampire bite appears to be some sort of action, and there is a sound file associated with it.

When confronting the hag, a note is: "Said with a sly smile. She knows you're a vampire." or "This line should be quieter. She knows you're a vampire, but doesn't want to say anything to break your cover."

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If they are planning on fully implementing contracting vampirism or lycanthropy with any and all characters, it is not obvious to me with what I've looked at so far.


- Priest