It is very rare that the bird flu spread amongst humans but it can happen. A Colorado prison inmate was detected positive with the avian flu in the U.S. Infected birds shed H5N1 viruses in their saliva, mucous, and feces. H5N1 virus infections among people are rare; however, human infections can happen when enough virus gets into a person's eyes, nose, or mouth, or is inhaled. The avian virus can cause diarrhea, nausea, stomach pain, vomiting, headache, fever, and body aches which it can be passed on by touching food or any object. The inmate who caught this virus was showing fatigue…