Crytosporidia :: Essays Papers

CrytosporidiaLife reportOnce thought to be r are and host specific, Cryptosporidia is now believed to be one of the top three diarrheal causing pathogens in the world. Cryptosporidia muris was recognized in 1907 by E. E. Tyzer. Since then twenty (20) species of Cryptosporidium have been disc all overed and named although lately sixteen (16) of those twenty (20) have come under speculation delinquent to recent cross-transmission studies. Cryptosporidia is a protozoan parasite which lives in the guts and respiratory epitheliums of galore(postnominal) types of animals including mammals, birds and reptiles. The disease caused by Cryptosporidia is known as Cryptosporidiosis. Cryptosporidia is found all over the world and is transmitted via fecal oral contact. Usually this is due to weewee polluted by animal feces. Infected calves excrete up to 10 billion Cryptosporidium oocysts (infectious stage) per day. The infectious dose in humans is only 10-100. However, contaminated food or di rect contact with feces stooge withal cause infection. Microbial CharacteristicsCryptosporidia are small coccidian spore-forming protazoans. When in oocyst form they are 4-6 um in size. GRAPH DiseaseCryptosporidia are encountered and transmitted through fecal oral transmission. Once a host ingests an oocyst, sporozoites are released. The sporozoite then can enter the epithelial cells in the small intestine where it will disclose into a trophozoite. Inside of a trophozoite, merozoites begin to form. When released, a merozoite can every infect another epithelial cell or it can create mentally into a sexual gamete. These gametes then join to form an oocyst and will be excreted in the feces. While in the hosts body, Cryptosporidia carries out its intact life cycle in the microvilli of the small intestine.The most common signal of Cryptosporidiosis is watery diarrhea. Other symptoms include- Dehydration - Weight loss - defend cramps or pain - Fever - Nausea - Vomiting Some stack with Cryptosporidiosis will have no symptoms at all. While the small intestine is the site most commonly affected, Cryptosporidium infections could possibly affect other areas of the digestive or the respiratory tract. (CDC) Symptoms usually begin 2-10 days after comely infected and last 1-2 weeks on average. In immunocompetent individuals, Cryptosporidiosis is not life threatening.