Among 52000 borrelia seropositive individuals, borrelia seropositivity was associated with short-term risk of atrioventricular block but not other conduction disorders or long-term increased risks

Lyme diseases / borreliosis is not associated with increased risk of hematologic cancers, except for a two-fold increased long-term risk of chronic lymphatic leukemia

Association between circumcision and human papillomavirus infection in males and females: meta-analysis finds that across 32 studies circumcision likely reduced HPV infections & enhanced viral clearance, while also potentially conferring protection to female sexual partners.