The new study included 276 healthy adults from 18 to 55 years old.
When it was over, one out of every two healthy adults had died.
It is good for all healthy adults and children older than age 2.
In a healthy human adult this process can take between 24 and 72 hours.
However, a group of five or more may attack a healthy adult.
Healthy adults should have the test every three years starting at age 45.
In most healthy adults, low blood pressure does not cause problems or symptoms.
The disease does not pose as great a risk to older children and healthy adults.
The guidelines say healthy adults should have this analysis every 5 years.