1 Leber's hereditary optic neuropathy (LHON). 2  Particularly prevalent among males, this type of inherited optic neuropathy can affect even carriers who don't have other symptoms but do have a degree of color blindness. 3  Red-green color vision defects primarily are noted with this condition. 4  Kallman's syndrome.
This medical symptom information shows the various types of Fever, and other related symptoms or conditions, including their causes and diagnosis. 1  Chills. 2  FUO. 3  Low-grade fever. 4  Prolonged fever. 5  Mild fever. 6  High fever. 7  Very high fever. 8  Recurrent fever.
There are two types of herpes simplex virus. Type 1 usually causes oral herpes, or fever blisters. Type 2 usually causes genital herpes. Although both type 1 and type 2 viruses can infect oral tissues, more than 95 percent of recurrent fever blister outbreaks are caused by the type 1 virus.Herpes simplex virus is highly contagious when fever blisters are present, and the virus frequently is spread by kissing.ever blisters and canker sores are two of the most common disorders of the mouth, causing discomfort and annoyance to millions of Americans. Both cause small sores to develop in or around the mouth, and often are confused with each other.