Pathogen Project Pathogens Chlamydia trachomatis-urogenital

Pathogen Project Pathogens Chlamydia trachomatis-urogenital...

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Chlamydiospore SEM Causative agent: Chlamydia trachomatis-urogenital Category: Bacteria Kingdom: Bacteria Phyllum: Chlamydiae Class: Chlamydiae Order: Chlamydiales Genus: Chlamydia Species: trachomatis Chlamydia is the most prevalent sexually transmitted disease in the United States. There are roughly four million cases annually, most occurring in men and women under the age of 25. Disease: Chlamydia is the most prevalent sexually transmitted disease in the United States. There are roughly four million cases annually, most occurring in men and women under the age of 25. Direct and indirect costs of chlamydia (mainly costs for complications) total $24 billion a year. This is most likely an underestimate, since many people with chlamydia infection likely have gonorrhea, as well. Hence, costs to diagnose and treat the latter sexually transmitted disease must be included. Chlamydia is caused by the bacterium Chlamydia trachomatis. The word chlamys is Greek for "cloak draped around the shoulder." This describes how the intracytoplasmic inclusions caused by the bacterium are "draped" around the infected cell's nucleus. Because the symptoms of the disease resemble other pathologies, chlamydia was not recognized as a sexually transmitted disease until recently. Isolation from embryonated eggs in 1957 and from cell culture in 1963 confirmed its existence as a bacterium. However, since the organism is an obligate intracellular parasite that exclusively infects humans (it cannot synthesize its own ATP or grow on artificial medium), it was once thought to be a virus. Because of Chlamydia's unique developmental cycle, it was taxonomically classified in a separate order. It can thus be found with the other well-known intracellular parasites, rickettsiae, in diagnostic manuals. Chlamydia has a genome size of approximately 500-1000 kilobases and contains
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This note was uploaded on 05/11/2011 for the course BIO 31 taught by Professor Silva during the Spring '11 term at Reedley.

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Pathogen Project Pathogens Chlamydia trachomatis-urogenital...

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