(mixed cluster)

This cluster contains articles about two distinct medical breakthroughs: a drug called rapamycin that reversed autism-like symptoms in mice, and a separate 'game-changing' drug enabling children with severe allergies to safely consume previously dangerous foods.

This is a long-running storyline that has developed over 12 days. The homepage highlights its most recent activity, so the outlet count there reflects the latest wave. The totals above cover the full run.