A slit throat was nothing to Jake. As soon as he activated the Vitality Link, Maeve's wounds were instantly transferred to him, but as before with Svara, he received only a milder version because of his high Constitution.
The deep gash that had sliced open her throat and severed muscles, arteries, thyroid and trachea became a simple incision only a few millimeters deep. Jake had thought at one time that the injury transfer was identical, but this Vitality Link obviously had his own way of quantifying vitality and damage.
His common sense dictated that it had to do with the law of conservation of energy. The energy required to slit or repair Maeve's throat was most likely insignificant compared to that required to achieve the same result on him.
Nor had the extensive blood loss had any substantial effect on his body. The scorching heat of this arid land compensated for the little bit of vitality lost, his bone marrow churning out new blood cells like a tireless factory.