Hand, Foot, and Mouth Disease reared its head in the Berkeley area schools earlier this spring and started causing a stir. This childhood illness is caused by an enterovirus, which is a very common type of virus. These types of viruses enter the human host through respiratory or gastrointestinal secretions. Hand, Foot, and Mouth Disease is generally a mild illness in a healthy child, although it can cause high fevers. For those of you whose children have already had the infection you may have recorded temperatures close to 103 F. Other symptoms are malaise, lesions in the mouth and a blistered-looking rash on the hands and feet, and occasionally on the buttocks.