How do i tell kids grandma has helicobacter pylori infections? what do they need to know?

How old r kids?: If little kids, don't need to know much. H pylori is common, (couple billion people in the world have it); can cause infl of stomach, duodenum, ulcers, associated with stomach cancer, lymphoma. Can be treated with a variety of regimens including antibiotics, and antiulcer meds. Don't know transmission exactly: food, water, other people.