Complex sentence: She writes children's books focusing on health and social issues, her most noteworthy being "Melanie's Marvelous Measles" which was published in 2012 but received considerable media attention after the Disneyland measles outbreak in 2014.
Split into simpler sentences: She writes children's books focusing on health and social issues. Her most noteworthy being Melanie's Marvelous Measles which was published in 2012 but received considerable media attention after the Disneyland measles outbreak in 2014.