Mosquito Disease 2024. The severe form of dengue fever, also called dengue hemorrhagic fever, can cause serious bleeding, a sudden drop in blood pressure (shock) and death. They can be caused by either parasites, bacteria or viruses.

Nine cases of west nile virus have been confirmed so far this year, as disease experts say the virus appears to be circulating more than usual for this time of summer. These include joint pain, fever, body aches, and chills.