1.   But in downtown Tempe and Phoenix, Super Bowl fever was causing some noticeable pockets of delirium.

2.   Fevers cause trouble, for doctors and patients.

3.   In a small percentage of children, fever can cause a seizure.

4.   Although less deadly than Ebola, in which victims literally bleed to death, dengue hemorrhagic fever also causes high fever, vomiting and bleeding.

5.   Generally, doctors say seizures caused by fevers are less worrisome than those that strike without a fever.

6.   The fever causes high temperatures, joint pains, chills and sometimes bleeding.

7.   The fever can cause glands in the neck, groin and armpit to swell and can cause headaches, tiredness and loss of appetite.

8.   The fever can cause death to those who get it twice.