CHILDCARE PROVIDER . Prepared by Hennepin County Human Services and Public Health Department (HSPHD) September 2015 . MONONUCLEOSIS . Mononucleosis (mono) is most often identified in hi gh school and college-aged students. About 50% of those infected will develop symptoms of infectious mononucleosis. 6 Important Facts About Mononucleosis Most people just call mononucleosis “mono” and it can spread from person to person thanks to the Epstein-Barr virus. It can be found most typically in saliva and mucous membranes, but there is evidence that it has even been present in a person’s disease. Mono Mono twins (Monoamniotic-Monochorionic or "Mo-Mo" twins) are always identical and incredibly rare (about 1 in 10,000 births). They will share both their amnions, chorions and placenta too. They only happen in about 1% of monozygotic (identical twins) pregnancies. We are hiring thousands of people for the 2020 Census. Click to learn more and apply. Fact Sheet From ReproductiveFacts.org The Patient Education Website of the American Society for Reproductive Medicine Varicocele What is a varicocele? A varicocele is a variation of normal anatomy in which veins in the scrotum (the sac that holds the testicles) become enlarged and sometimes even visible. Brochures Booklets. Fact Sheets. Forms. Language ID Card. Posters. Public Service Announcements . Web Cast . Training Resource . This page provides documents created by HUD program offices printed in English and other languages.