Gonorrhea Health Article

Definition

Gonorrhea is a highly contagious sexually transmitted disease (STD) caused by the Neisseria gonorrhoeae bacterium. The genitourinary tract is the main system that is usually affected, but gonorrhea can also spread to the rectum, the throat, and the eyes. Left untreated, gonorrhea can spread through the bloodstream and infect the brain, heart valves, joints, and the reproductive system. Exposure to an infected mother during birth may cause permanent blindness in the newborn.

Description

Gonorrhea, commonly referred to as "the clap," is the most prevalent reportable disease in the United States. Adolescents and young adults are in the highest risk category, with more than 80% of gonorrhea cases affecting the 15–29 year-old age group. Individuals living in urban areas who have multiple sex partners have the highest risk of contracting the disease. Still, the incidence of gonorrhea has been steadily declining since 1987. This appears to be largely due to increased public awareness about the risks and prevention of contracting STDs such as herpes and HIV. However, in 2002, the Centers for Disease Control (CDC) expressed concern about rising rates of gonorrhea in certain urban areas during 1999 and 2000. About 650,000 new cases of gonorrhea occur every year in the United States. In particular, rates of gonorrhea were increasing substantially among men who have sex with men.

Causes & symptoms

Gonorrhea is transmitted very efficiently. It can be spread by merely contacting the fluids of an infected person as well as by sexual contact. A person runs a 60–90% chance of contracting the disease after just one sexual encounter with an infected person. The symptoms usually begin between one day and two weeks after the initial encounter with the infection.

People who are infected with gonorrhea commonly experience increasingly frequent and painful urination, and

the urethra may be painful and swollen. There may be a thick white, yellowish, or bloody discharge from the penis or vagina. Other symptoms may include nausea, vomiting, fever, chills, and pain during intercourse. In the case of oral infection, there may be a sore throat or pain during swallowing. An anal infection may cause rectal itching, rectal discharge, and a constant urge to move the bowels. Women who show symptoms of gonorrhea often have abdominal pain and breakthrough bleeding (spotting) between menstrual periods. However, many women who have gonorrhea do not experience any symptoms.

In infants and children, irritation, redness, swelling with a pus-like discharge, and possibly pain and a change in urination may point to a gonorrhea infection. The infection may be due to child abuse or exposure to infected materials. An in-depth history should be taken if gonorrhea is suspected.

Diagnosis

The initial diagnosis of gonorrhea will be based on symptoms, sexual history, and at-risk behavior. One laboratory test for diagnosis involves the observation of a gram-stained sample of the discharge under a microscope. In the gram stain test, the sample is dyed, washed with various solutions, and dyed with a different color. The final color identifies the class of bacteria present in the sample. The advantage of this test is that results can be obtained very quickly so that treatment can commence at the initial visit. In the vast majority of men, it is quite accurate; however, the test is not very accurate for women.

For all women and for men with a questionable gram-stain reading, samples of the discharge from the infected area can be collected and cultured. The sample is incubated for up to two days, which provides enough time for the bacteria to multiply and be accurately identified. This test is very accurate and specific for gonorrhea, but improper handling can lead to a false-negative reading. Other tests coming into favor include the ELISA (enzyme-linked immunosorbent assay) antibody test and DNA probe testing of genetic material from the discharge, both of which are quite accurate in identifying Neisseria gonorrhoeae.