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.
It is one of the most common STDs in the United States. According to the Centers for Disease Control and Prevention (CDC), 1,401,906 chlamydia infections were reported in the United States in 2013. Many people who become infected with chlamydia donât ever display symptoms.