10 found that portions of the cag II segment hybridizes with segments of cagA- strains indicating that on both sides of this segment there are sequences which are common to all strains of H. pylori. 10 Studies by Akopyants NS, et. al.
Sin embargo, en un estudio realizado por NS Akopyants, et al 10 se encontró que porciones del segmento cag II hibridaban con segmentos de cepas cagA- indicando que a lado y lado de este segmento hay secuencias comunes para todas las cepas de H. pylori 10.