Sexually transmitted infection (sti): a(cid:374) i(cid:374)fe(cid:272)tio(cid:374) that(cid:859)s passed f(cid:396)o(cid:373) o(cid:374)e pe(cid:396)so(cid:374) to a(cid:374)othe(cid:396) through sexual contact (some stis, such as hiv, can also be transmitted in other ways) Human papillomavirus (hpv) and genital herpes are the most common a(cid:396)e(cid:374)(cid:859)t (cid:396)e(cid:395)ui(cid:396)ed to be reported. Chlamydia is the most common sti for cases that are reported. Teens and adutls have highest rates of chlamydia. Mckay and barrett suggest that large reported rate increases in chlamydia in canada are likely attributed in large part to more sensitive testing methods and increases in the number of people tested. In western countries consistently find that chlamydia is most common among people udner age 25 (dielissen) Chlamydia are much higher among females lower reported rates among males are most likely due to lower rates of testing of males (satterwhite) The highest sti rates occur in canadas north, then western provinces especially. Saskatchewan higher rates among first nation people.