July 14, 2025
Simone Lehwess Mozzilli wants a world where children diagnosed with cancer feel empowered.
Mozzilli didnât plan to become a patient advocate. She studied communications in college and ran a digital content agency whose clients included Apple, BlackBerry, and Sony. But in 2008, while volunteering with Disney VoluntEARS, her path changed. Mozzilli began visiting children with cancer and helping their families arrange for housing while traveling for treatment. âThe kids are smart; they talk to each other,â she says. âI started to realize that kids know everything about what theyâre going through. They start to tell me about chemotherapy and going to the hospital.â
In 2010 and 2011, Mozzilli was monitored for an ovarian cyst. Though it appeared benign, she sought care at A.C.Camargo Cancer Center in SĂŁo Paulo, where sheâd been volunteering. One of the children there, seven-year-old Ana Luiza, knew her from her volunteer work. She urged Mozzilli to get the cyst removed. Mozzilliâs doctorâand five othersâsaid surgery wasnât necessary. But after Ana Luiza passed away that June from pediatric cancer, Mozzilli insisted. It was only then that surgeons discovered she had metastatic ovarian cancer with just a 20% chance of survival.
âAna Luiza saved my life,â she says.
Mozzilli spent six months in treatment, undergoing major surgeryâremoving five organs and 51 lymph nodesâand rounds of chemotherapy. Through it all, the same children she once comforted were now the ones supporting her.
Thatâs when the idea came for her nonprofit. âIt started inside the hospitalâduring my treatment, during the kidsâ treatment,â she says. She and the kids began drawing medical illustrations and developing content to help other children understand various medical procedures. Many patients came from regions in Brazil with low health literacy, and they needed information in clear, honest, and accessible language.
Now in its 11th year, Beaba (which Mozzilli describes as âthe ABCs of Cancerâ) is a nonprofit that provides educational tools to help kids with cancer understand their illness, communicate with doctors, and fight stigmaâespecially in countries like Brazil. The organizationâs signature resource, the Beabook, includes over 190 illustrated definitions of terms children might encounter during treatmentâincluding those relevant to genomics, such as âgene,â âgenetics,â and âcell therapy.â Itâs currently available in more than 300 hospitals worldwide. Beaba has also developed material for NF-1 (a genetic condition that causes nerve tissue tumors and spotting on the skin) that uses the metaphor of an animal who has spots. In addition to educational content, Beaba hosts camps and other support programs for kids undergoing cancer treatment and their caretakers.
In 2024, Illumina partnered with Beaba to translate the Beabook into Braille. The material was created by Nicole Santosâa child who became blind from retinoblastomaâand her mother, Bianca Chaloh. Itâs the first Braille resource in the world dedicated to pediatric oncology; it was presented at the International Society of Paediatric Oncology Congress in 2023. Illumina also supported the development of a website with materials in English and Spanish. These new additions expand access to Beabaâs patient- and family-friendly information about cancer and its treatment, including the importance of biomarker testing, in a clear, objective, and optimistic manner.
Beabaâs impact is challenging to measure, Mozzilli says, especially since requests for their materials come from countries as far afield as Japan and Ukraine. She also knows that the information they share on social media (available shortly after on their website) is further shared in more private forums, like group chats.
âMy dream is to have materials for all diseases, because diseases will not disappear,â Mozzilli says. Most medical information is difficult to understand, but Beaba is showing how powerful it can be to communicate it with humor and honesty. â


