WHO revealed that more than 1 million new cases of 4 Sexually Transmitted Infections-Chlamydia, Gonorrhea, Trichomoniasis & SYphilis are contracted every day. WHO finds on an average of 1 in every 25 people globally have at least one of these STIs. STIs is also known as STDs. STIs are transmitted through unprotected vaginal, anal & oral sex. If they are not treated, they can lead to serious problems like infertility, HIV.