Trichomoniasis is a sexually transmitted infection (STI) which is most often spread through vaginal, oral, or anal sex. It can also spread through genital touching. People who are infected may spread the disease even when symptoms are not present.
The manufacture of US paper currency is handled by the Bureau of Engraving and Printing (BEP). The main facility is in Washington, DC. There is a also a facility in Fort Worth, TX that is more recent (opened in 1991).
Six Kinds of United States Paper Currency. On 10 July 1929 the United States replaced its large size currency, like the Series 1923 Silver Certificate One Dollar bill above (click on the image for the reverse design), with small size notes, like the corresponding Series 1928 note following: