"The mission of every Infectious Awareables tie is to generate interest, discussion, even excitement about serious public health issues such as this silk extra long Hepatitis B tie in olive. Believing that humor can be a powerful educational tool, Infectious Awareables neckties take an atypical, slightly irreverent approach to some very serious subjects." Shop and take pride in knowing that a portion of the proceeds will be donated to disease research/education. Hepatitis-B virus is a dangerous viral pathogen that causes severe liver disease. HBV is transmitted by sexual contact, transfusion or contaminated needles. It looms as a serious global threat, with at least 280 million cases occurring globally, many of whom become lifetime carriers. A vaccine is available, but it didn't stop us from this new production following a complete sell out of our first run. This is a great looking tie! For the "tie-in-the Petrie dish" set, this bowtie is part of our exclusive, ever-expanding BioBowª silk bow tie collection! With the help of our Bow-borne creative panel, we offer these awesomely adjustable, 100% silk, butterfly-winged, manual tying, coup de cravat! Thanks to Dr. Mark Dembert for afficianado specs and eagle eye, and to Dr. Timothy Overman for his continuing encouragment in the face of overwhelming obstacles ;) 100% silk 2.5" wings, 36" max length Manual bow tie, no clip-on wimps! Images are based on actual scientific images, and are made from highest quality, 100% silk. Designed to complement every wardrobe, from laboratory to boardroom, the patterns represent many of the most serious public health challenges facing our 21st century global community. And some are just for fun! A portion of the proceeds from the sale of these items is donated to research or education. Need a unique gift? "Dear Dad, Couldn't resist this for your birthday. Not only is it appropriate to your line of work, it also goes with your infectious sense of humor. Hope your birthday is a wonderful one!! Wear it in good health. Love to the birthday boy, Jonna, Matt and all the little bacteria." (Thanks to the Cooper Family) These silk bow ties make an excellent doctor gift idea, or medical school graduation gift, and are ideal for promoting health awareness.