The first case of dengue virus that is not associated with travelling has been detected in California. This virus route of infection is through mosquito bites, and it includes fever-like symptoms as well as excessive bodily pain, bleeding, and rashes. It is not contagious through humans, but is spread through mosquitoes. Dengue fever requires hospitalization, since there is a small chance it can evolve into internal bleeding and death. Click here to learn more about dengue.