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).
Today, all paper money in the U.S. is in the form of Federal Reserve Notes, which since 1929 have measured 6.14 by 2.61 inches. With so many types of notes floating around, counterfeiting was a huge problem. So, in 1928 the U.S. decided to standardize all notes with a smaller size, similar designs, and all printed using green ink.