The syndrome generally occurs within the first 20 years of life.

Rain generally occurs on around 2 out of 10 summer days.

They generally occur after the head has been bumped in a fall or other accident.

Such infections generally occur later in life through sexual activity.

It does not generally occur in agricultural areas or near human settlements.

They generally occur in areas of moderate to high surf.

After the onset of symptoms, death generally occurs in eight to 16 days.

Symptoms generally occur within 3 months of the stressful event.

It is a natural phenomena which generally occurs about once every five years.