Dublin teenager Claire Gregg has wowed judges at the Google Science Fair with her innovative Ebola programme.
The Loreto College student (13) has developed a programme that could help people explore different scenarios as to how the disease spreads.
Claire was only 12 when she began writing it, and it took her only two months.
"I never expected that it would get this far," she told the Herald.
"I spent months researching it because I found it so interesting and I think this is an interesting way to look at it.
"I taught myself code through online courses.
"I'd love to teach computer science when I'm older."
Claire is one of three Irish students to be selected as a regional finalist.
Louis Madden (16), from Monaghan, and Rose Anne O'Mahony (16), from Cork, are also set to battle it out for a place in the international finals.
Google will announce a shortlist of 20 students on August 4.
The finalists will compete for a chance to win a range of prizes including scholarships and funding to develop their projects.