If you mean in a similar fashion to Ebola (contact with body fluids of an infected person); then no; Dengue cannot transmit like this. There are a few, but very few reported cases of vertical transmission (mother to child), and infection through blood transfusion. I am not a modeller, but if I was working on a transmission dynamics model of dengue, I would disregard these and focus on the main route of transmission, via mosquitoes. Hope this helps