Apart from PD, LRRK2 has also been linked to cancer (Ruiz-Martínez et al., 2014), inflammatory bowel disorder (IBD) (Jostins et al., 2012), multibacillary leprosy (Zhang et al., 2009), and functionally with tuberculosis (Härtlova et al., 2018). The gene discussed is LRRK2; the disease is Parkinson disease.