Giardia cycles in the GI tract. It lives in the lining for a few days, then comes out to reproduce, causing symptoms, then goes dormant again. The stool tests have to be timed when the organism is actively in the bowel. It does not typically show up when in the dormant stage.
__________________
All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
************************************
.
Weezie looking at petunias 8.25.2017
****************************
These forums are for mutual support and information sharing only. The forums are not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider. Always consult your doctor before trying anything you read here.