For a stool culture, the lab will need a fresh or refrigerated sample of stool. The best samples are of loose, fresh stool; well-formed stool is rarely positive for disease-causing bacteria. Sometimes, more than one stool will be collected for a culture. Swabs from a child's rectum also can be tested for viruses.
Miraa- is a plant whose fresh leaves and soft twigs are chewed to release a juice containing cathinone and cathine, the active chemicals that alter the mood of the abuser. Catha edulis appears to have originated in Ethiopia. It spread early on to Somalia, Djibouti, Eritrea and the Arabian Peninsula.
Â© Jupiterimages/Pixland/Thinkstock. Chewing on ice will give you more than just the chills; all that crunching, it turns out, is bad for your mouth -- the habit can injure soft tissue (such as your gums) and has been known to break or crack teeth. And here's something you might now know: It may also be a sign that you're anemic.