An official strike is a strike organised and recognised by a labour union, as opposed to an unofficial strike at grassroots level. An official school is a school administered by the government or by a local authority, as opposite to a private school or religious school. [citation needed]
Trichomoniasis, sometimes called trich (pronounced trick), is a common sexually transmitted infection (STI) that affects both females and males, but symptoms are more common in females. Trichomoniasis is caused by the single-celled protozoan parasite, Trichomonas vaginalis. The vagina is the most common site of infection in girls and women, and the urethra (urine canal) is the most common site of infection in boys and men. The parasite is sexually transmitted throughsex (penis-to-vagina or vulva-to-vulva contact) with an infected partner.
1 However, if left untreated, the disease can spread throughout the body over the course of many years and cause considerable organ damage. 2  Trichomonas. 3  Trichomonas vaginalis is a microscopic parasite that causes trichomoniasis, a common STD, especially among sexually active young women. One of the most common STDs in the United States, this virus can infect the genital area as well as the mouth and throat. 2  Low-risk types can cause genital warts (condyloma) while high-risk types can cause cervical cancer and other genital cancers. 3  Early detection can reduce the risk of cancer.