The Elder Scrolls V: Skyrim Tips

Easy Vampirism
Go to a cave located near Solitude to find Movarth's Lair. Inside there are always a good 5 vampires and one master vampire (might be best to avoid that one). After they see you, they'll hit you with a spell called Vampiric Drain. After a few seconds or possibly longer, you'll get the disease that progresses to vampirism.