They can cause a mild form of meningitis, which is an infection near the brain.
A18 Scientists identified a gene that causes a form of hypertension.
"This has caused a form of post-traumatic stress disorder in our culture," he says.
It is thought that particular mutations do not cause a more severe or less severe form of the disease.
This may cause a painful form of glaucoma and inflammation inside the eye.
"She was infected with a virus that causes a severe form of encephalitis," I said.
This causes a form of motion sickness called space adaptation syndrome.
The inflammation can also affect other parts of the body, such as the eyes or joints, and may cause a form of arthritis.
It causes an acute form of hepatitis and does not have a chronic stage.
And that lie by omission caused a form of mental exhaustion.