Retraction of the Week

Retraction of the Week — Issue #1: SIDS vaccines, keto diet, birdsong, and parental alienation

Four officially retracted papers from May–June 2026: an Elsevier SIDS–vaccine study pulled after five years, a viral keto diet paper retracted by its own authors over data anomalies, a Nature birdsong study with a credit dispute over who flagged it, and a humanities review removed following legal threats from an advocacy group. Each entry covers what the paper claimed, its citation reach, the documented retraction reason, who flagged it, and downstream consequences.