Japanese encephalitis (viral brain infection) Description A viral infection (flavivirus) that infects the brain (encephalitis) acquired from the bite of a mosquito (C…
Jaundice (yellow skin color) Description A yellow color in the skin, the mucous membranes, and the eyes. Jaundice is not a disease but a sign of dise…
Jellyfish stings Description Jellyfish are marine animals with long tentacles. These tentacles have stingers that can release venom when …
Jet lag Description Fatigue, insomnia and other symptoms that occur with crossing time zones. This disorder occurs because of th…
Jock itch (tinea cruris) Description Tinea cruris is a fungal infection of the groin that is commonly called jock itch. It results in an itchy re…
Juvenile rheumatoid arthritis Description Juvenile rheumatoid arthritis is inflammation of the joints that occurs before the age of seventeen that is …