A little-known sexually transmitted disease that has attracted more
attention lately may actually be fairly common, according to a new
study.
The study found that the bacterium Mycoplasma genitalium,
which is thought to be sexually transmitted, infects more than 1
percent of people ages 16 to 44 in the United Kingdom. That comes out to
about 250,000 people, according to U.K. census data. Studies in the
United States have found that a similar percentage of people here are
infected with M.genitalium.
That makes M. genitalium a
more common sexually transmitted disease (STD) than gonorrhea,
according to the Centers for Disease Control and Prevention. [Hidden STD
Epidemic: 110 Million Infections in the US]
Here’s what you need to know about Mycoplasma genitalium:
Is this a new STD?
Some news outlets have described M. genitalium as
a “new” sexually transmitted infection, but the bacteria were first
discovered in 1980. At this time, researchers didn’t have the right
types of test to study M.genitalium, so the connection between M. genitalium and
sexual activity came a little later — around the mid-1990s, said Lisa
Manhart, a professor of epidemiology at the University of Washington in
Seattle, who was not involved in the new study, but has researched M. genitalium. For example, early studies found that people who tested positive forM. genitalium often had sexual partners who were infected with the disease as well.
The new study adds to the evidence that M. genitalium is
an STD, because it found that the infection was more common in people
who had at least four new sexual partners in the past year than in
people who had one or fewer new partners in the past year. In addition, people were more likely to have M.genitalium if they had unprotected sex, and no infections were found in people who had never had sex, according to the study, which was published Nov. 3 in the International Journal of Epidemiology.
people who had one or fewer new partners in the past year. In addition, people were more likely to have M.genitalium if they had unprotected sex, and no infections were found in people who had never had sex, according to the study, which was published Nov. 3 in the International Journal of Epidemiology.
What symptoms does it cause?
In men, the bacteria can cause inflammation of the urethra (called
urethritis) that leads to symptoms such as a burning pain while
urinating or discharge from the pe nis.
Whether M. genitalium causes
disease in women is less clear, but the bacteria have been linked to
inflammation of the cervix (cervicitis), as well as pelvic inflammatory
disease, an infection of the female reproductive organs that can lead to
pain in the lower abdomen and pain or bleeding during sex, according to
the CDC. In severe cases, pelvic inflammatory disease can lead to
infertility in women.
“Most of the research that’s going on now is trying to better understand the implications of [M. genitalium]
infection in women,” Manhart said. A recent review study by Manhart and
colleagues found that the risk of inflammation of the cervix, pelvic
inflammatory disease and preterm birth was about twice as high in women
with M. genitalium infection, compared to women without the infection. Still, some researchers want to see more evidence before concluding that M. genitalium does cause complications in women, Manhartsaid.
The new study in the International Journal of Epidemiology found that
about 94 percent of men and 56 percent of women infected with M. genitalium did not have symptoms.
Should people be tested for it?
The U.S. Food and Drug Administration has not approved a test for M. genitalium,
and doctors do not routinely test for the bacteria, said Dr. Jamin
Brahmbhatt, a urologist at Orlando Health in Florida. However, doctors
may consider testing for M. genitalium in
patients who have persistent symptoms after treatment for other
sexually transmitted diseases that can cause similar symptoms, said
Brahmbhatt, who was not involved in the study but treated people with M. genitaliuminfections.
More research is needed to better understand how common M. genitalium is among people in the U.S., and whether routine screening for the bacteria may be warranted, he said.
Do you need to treat it?
The antibiotics that are generally recommended to treat urethritis,
cervicitis and pelvic inflammatory disease are usually not very
effective against M. genitalium, Manhart said. So doctors might suspect that a patient has M. genitalium if
he or she doesn’t get better after taking the drugs typically used to
treat these other STDs. Doctors could then provide other antibiotics
that are more effective against M. genitalium, Manhart said.
Original article was published on Live Science.
0 comments:
Post a Comment