Chlamydia is the most common sexually transmitted disease (STD) in the United States, with about three million new cases diagnosed in the country each year. The disease is caused by a bacterium called Chlamydia trachomatis. The following areas in the body can be affected:
cervix
fallopian tubes, which carry ova (eggs) from the ovaries to the uterus
urethra, which carries urine from the bladder to outside the body
epididymis, a small organ attached to the testicles that is responsible for sperm production
prostate gland, a gland at the base of the penis which provides nutrients for sperm
anus
throat
eyes
In addition, Chlamydia trachomatis also causes lung and eye infections in newborns whose mothers have a chlamydial infection during the last part of their pregnancy.
Description
Chlamydia is most often found in sexually active adolescents aged 15–19. Data gathered by the Centers for Disease Control (CDC) suggest that sexually active girls in this age group may account for up to 46% of chlamydial infections.
According to the CDC, approximately 40% of women infected with chlamydia will develop pelvic inflammatory disease (PID). If untreated, 18% of women with PID will have chronic inflammatory pain. In addition, chlamydia may cause extensive damage to the fallopian tubes. Scarring can block the tube and prevent the egg from being fertilized. As a result, one of every five women with PID will not be able to conceive. Tube scarring may also cause the fertilized egg to be trapped inside the tube, unable to reach the uterus. When the fertilized egg develops inside the tube rather than in the uterus, the condition is called tubal pregnancy. The condition is potentially fatal if the tube ruptures. In America, tubal pregnancy is the number one cause of death of women in early pregnancy.
Cause
Chlamydia is caused by a bacterial parasite called Chlamydia trachomatis. The organism lives inside humans, who act as hosts. It is dependent on humans for energy because it is unable to produce energy for itself. C. trachomatis often causes genital and urinary tract infections in sexually active men and women.
Mode of transmission
A person can be infected with C. trachomatis by:
having sex (oral, genital, or anal) with an infected partner
sharing infected sex toys
passing through the infected birth canal of a mother who has chlamydia
Age. Young sexually active people aged 15–19 are most frequently affected.
Race. Blacks contract this disease more often than whites or Hispanics.
Marital status. Chlamydia is most often found in single women. Married women have the lowest risk.
Behavioral factors. Douching increases risk of chlamydial infections. Smoking also increases one's risk of contracting this disease. Those who have sex with many different partners or with strangers are at high risk. Also at increased risk are those who have unprotected sex with partners of unknown disease status. Previous induced abortions also increase a woman's chance of getting this disease.
Socio-economic status. Poor, uneducated women living in big cities are more often affected by this disease.
Postpartum period. Increased risk of contracting chlamydia is observed during the period immediately
after giving birth or undergoing an induced abortion. This is because the cervix is not entirely closed, allowing more chance for becoming infected.
Symptoms
Approximately 75% of women do not have symptoms. If a woman is going to have any symptoms, they should develop one to three weeks after she is infected. Her symptoms may include:
Chlamydia infection in men may develop in the urethra, epididymis and/or the prostate. Approximately 50% of infected men do not have any symptoms. If he is going to have symptoms, they should develop one to three weeks after he is infected. His symptoms may include:
pain between the scrotum and anal area and difficult and frequent urination (prostatitis)
On rare occasions, chlamydia infection in men and women can develop outside of the genital areas. These patients may have infections at the following sites:
the eyes (due to a contaminated hand touching the eyes): itching, redness and itching of the eyelids
the throat (following oral sex with infected men): throat irritation or no symptoms
the anus (following anal intercourse with infected men): rectal bleeding, mucous rectal discharge, diarrhea, and pain with bowel movement.
Diagnosis
Diagnosis is based on patients' history, laboratory testing for chlamydia, and physical exam for men and pelvic exam for women to determine if the patient is infected and/or the extent of infection.
There are several tests available for chlamydial infection. They often require swipes from the site of infection or urine samples. Tests for chlamydia include:
Cell culture test. This old test is reliable but requires 48–72 hours to complete. It is being replaced by faster and more convenient tests. In 2001, the U.S. Food and Drug Administration (FDA) receommended routine screening for chlamydia among sexually active young women. One year later, they approved a new test called ThinPrep, a new type of Pap smear that allows doctors to screen for chlamydia, gonorrhea, and the human papillomavirus at the same time women have annual pap exams for cervical cancer.
Direct fluorescent antibody (DFA) staining. This test is faster than the traditional culture test.
Enzyme immunoassay (EIA). It is easy to perform and also faster than the traditional culture test but is not as accurate.
DNA probe. This test is expensive but is more specific and convenient than culture, EIA, or DFA tests. Genital swipe samples are not necessary. Urine tests can provide accurate results.
Nucleic acid amplification (PCR and LCR) tests. These tests look for genetic material of the organism. These are the tests of choice because they are the most sensitive (more than 90% accurate) and the most specific. They are also convenient because they can be performed on urine samples and do not require a pelvic exam.
In 2002, a presentation to gynecologists pointed out that more doctors should assume some overlap when patients present with symptoms of urinary tract infections. These may signal hidden chlamydia as well. In fact, the two conditions often can be present at the same time.
Treatment
Alternative therapy should be complementary to antibiotic therapy. Because of the potentially serious nature of this disease, patients should first consult an allopathic physician to start antibiotic treatment for infections. Traditional medicine is better equipped to quickly eradicate the infection while alternative treatments can help the body fight the disease and relieve symptoms associated with this disease. Some alternative treatments include nutritional therapy, herbal remedies, traditional Chinese medicine, and homeopathy.
Nutritional therapy
The following dietary changes may be helpful:
Following a low-fat, high-fiber diet. The diet should include a variety of fresh fruits and vegetables. These foods contain high amounts of phytonutrients and essential vitamins that help keep the body strong and stimulate the immune system to fight infections.
Limited intake of fat, sugar, highly processed foods, caffeine, and alcohol, which depresses the immune function.
Eating fresh garlic or taking garlic pills to help fight infection.
Herbal treatment
Echinacea and berberine-containing herbs such as saw palmetto (Serenoa repens) and goldenseal are natural antibiotics. These herbs can assist the action of prescription antibiotics.
Traditional Chinese medicine
An experienced Chinese herbalist will prepare a specific herbal mixture based on a patient's specific condition and symptoms.
Homeopathy
A homeopathic practitioner may prescribe a patient-specific remedy to help reduce some of the symptoms associated with disease. Remedies for chlamydial symptoms include Cannabis sativa, Cantharis, and Salidago virga.
Allopathic treatment
Once detected, chlamydia can be easily treated with antibiotics. However, if not detected early enough, scarring of fallopian tubes (and resulting infertility) may not be preventable. The two most commonly used drugs are azithromycin and doxycycline. Azithromycin is a more expensive drug but is much more convenient to administer. Only one dose is needed to treat the disease. Doxycycline is cheaper but needs to be taken twice a day for more than seven days. Because patients tend to stop taking drugs after a few days, doxycycline is not as effective as azithromycin. Therefore, many doctors prefer to give azithromycin. Patients are advised to refrain from sex for a full week after taking azithromycin or until they finish doxycycline treatment.
An infected person should contact all partners within the last two months so that they can be treated for chlamydia.
Infected pregnant women should be given erythromycin for seven days, instead of other drugs, because this drug is safer during pregnancy.
Follow-up testing is done four weeks after drug treatment to see if the infection is eradicated. If tests continues to be positive, the patient will be given another course of antibiotics.
Expected results
A woman's prognosis depends on the duration of infection, whether the infection has spread through the uterus and the fallopian tubes, and the number of previous chlamydial infections. If caught early, the disease can be completely cured with antibiotic treatment in seven days. However, if left untreated, chlamydia can spread through the uterus to the fallopian tubes and cause chronic pelvic inflammatory disease. Infertility may occur as a result of serious damage to the female reproductive tract. Potentially fatal tubal pregnancy is also a risk.
Prevention
Prevention is the most important means of stopping the spread of this disease. The following practices are recommended to prevent the spread of this and other sexually transmitted diseases:
Abstinence. Abstinence is the only 100% way to prevent chlamydia and other STD infections.
Monogamy. Having a mutually monogamous relationship with an uninfected partner reduces the chance of getting STD infections.
Avoiding a sexual relationship with an unknown partner or a partner whose infection status is unknown.
If having sex with an unknown partner, using a barrier contraceptive such as a condom (for men) or diaphragm (for women) is recommended. However, condoms (or diaphragms) are not 100% effective against chlamydia or other STDs.
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ORGANIZATIONS
CDC National STDs Hotline. (800) 227-8922.
NIH's National Institute of Allergy and Infectious Diseases. NIAID Office of Communications, 31 Center Drive (MSC-2520), Building 31, Room 7A50, Bethesda, MD 208922520. http://www.niaid.nih.gov/publications/stds.htm.
OTHER
Centers for Disease Control and Prevention. "CDC Fact Sheet: Some Facts about Chlamydia." WebMD. http://webmd.lycos.com/content/dmk/dmk_article_58818.
Peeling, Rosanna W. "Chlamydiae as Pathogens: New Species and New Issues." Medscape. http://www.medscape.com.
U.S. Department of Health and Human Services. "Counseling to Prevent HIV Infection and Other Sexually Transmitted Diseases." WebMD. http://webmd.lycos.com/content/dmk/dmk_article_5462254.
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