Mont. Code Ann. § 50-18-101
Sexually transmitted diseases defined
50-18-101 . Sexually transmitted diseases defined. Human immunodeficiency virus (HIV), syphilis, gonorrhea, chancroid, chlamydia genital infections, lymphogranuloma venereum, and granuloma inguinale are sexually transmitted diseases. Sexually transmitted diseases are contagious, infectious, communicable, and dangerous to public health.