Nilsson, et. al. 26 reported that cag PAI without deletions has been associated with an increased risk of the development of severe diseases, while strains with internal deletions are less virulent.
Nilsson, et al 26 reportaron que cagPAI sin deleciones se ha asociado con un aumento en el riesgo de desarrollar enfermedad severa, mientras que cepas con deleciones internas en cagPAI son menos virulentas.