By STEPHEN MCGRATH, Associated Press At Dracula's castle in picturesque Transylvania, Romanian doctors are offering a jab in the arm rather than a stake through the heart. A COVID-19 vaccination center has been set up on the periphery of Romania's Bran Castle, which is purported to be the inspiration behind Dracula's home in Bram Stoker's 19th-century gothic novel "Dracula." Every weekend through May