ODAD2 and Respiratory tract infection: The ARMC4 gene contributes to ciliary motility, cilium assembly, and microtubule‐based movement.[61] Variants in this gene cause PCD, an autosomal recessive disorder characterized by ciliary structural anomalies, respiratory tract infections, and abnormal sperm motility.[62] Although proband DIS‐9 has oligozoospermia (low sperm count), the presence of two novel variants, c.2097+1G>A and p.[Gly922Glu], suggests PCD.