By the way, earlier reports on vaccinated cases at Israeli hospitals when there were 152 hospitalized breakthrough infections showed that a full 40% of these cases were immunocompromised, and 96% had co-morbidities including hypertension (71%), diabetes (48%), congestive heart failure (27%), chronic kidney and lung diseases (24% each), dementia (19%) and cancer (24%). Thus, there have been virtually no serious breakthrough Delta infections in Israel for individuals without significant pre-existing conditions.