2017年11月5日星期日

New study suggests STD chlamydia frequently exchanges DNA to new strains

New study suggests STD chlamydia frequently exchanges DNA to new strains
The bacteria that cause Chlamydia Treatment, the world's most common sexually transmitted disease, seems to be sneakier than once thought, as a new study suggests it frequently exchanges DNA between different strains to form entirely new strains.
Chlaymydia is caused by the bacteria Chlamydia trachomatis, and though its symptoms are often mild, the sexually transmitted disease can cause infertility in women and a discharge from the penis of an infected man. Chlamydia is the most common bacterial STD in the world, including in the U.S. where more than 1.3 million cases were reported in 2010. About 100 million cases of chlamydia are reported each year across the globe.
Scientists know there are two groups of Chlamydia Cure, one that seems to infect the eyes and urinary-genital areas, and another set known to spread through the lymphatic system, which is important to the body's immune system. Currently, an epidemic of the lymphatic types is progressing in Europe and North America, particularly in men who have sex with men, the researchers note online on March 11 in the journal Nature Genetics.
However, little is known about how these different strains evolve and emerge.
"Scientists recently discovered that if two chlamydia strains co-infect the same person at the same time, they can swap DNA by a process called recombination," lead researcher Dr. Simon Harris, from the Wellcome Trust Sanger Institute, said in a statement.
To find out how widespread this swapping is, Harris and colleagues compared the genome sequences of 53 strains of C. trachomatis, which were isolated from epidemics that occurred between 1959 and 2009; the strains were meant to represent the diversity of chlamydia seen in clinical settings. Results showed that even when the Chlamydia strains had infected different parts of the body, they could still swap DNA with each other, leading to new strains.
Recombination "was originally thought only to affect a few 'hotspots' within the genome," Harris said. "We were very surprised to find recombination is far more widespread than previously thought."
The results have implications for how the STD is diagnosed. Currently, doctors use a test that returns a positive or negative for chlamydia infections, without any information on the particular strain. That means doctors can't tell, say, if a person who tests positive again after being treated with antibiotics has picked up a second strain of chlamydia or if their treatment has failed.
While antibiotic-resistant chlamydia has not been seen in patients, it does occur in the lab. If it did occur in the general population, current tests would not detect it.
"Until now a person treated with antibiotics with a reoccurring infection of C. trachomatis was assumed to have been re-infected," study researcher Dr. Nicholas Thomson, also of the Wellcome Trust Sanger Institute, said in a statement. "The current gaps in our understanding of the population makeup of chlamydia limit our ability to implement health policies, because we do not fully understand how chlamydia spreads within our population."
The scientists are now working with hospitals to bring technologies for whole-genome sequencing into clinical settings.

The STD chlamydia is on the rise in Michigan

The STD chlamydia is on the rise in Michigan
The sexually transmitted disease Chlamydia Treatment is on the rise in Michigan, and Livingston County is no exception.
The county has seen a 72 percent increase in the number of cases of chlamydia since 2008, according to the Livingston County Department of Public Health.
There were 297 residents diagnosed with chlamydia in 2012, which are the latest figures available. There were 173 cases in 2008.
Ted Westmeier, director of the Livingston County Department of Public Health, said unprotected sex is the primary reason for the increase.
“Many people do not have symptoms of the disease but carry it,” Westmeier said.
Chlamydia Cure can be spread during vaginal, anal or oral sex. It also can be passed from an infected mother to her unborn child during vaginal birth.
Although symptoms usually occur in one to three weeks, 74 percent of infected females and 50 percent of infected males show no symptoms.
Female symptoms include abnormal vaginal discharge, burning with urination, lower abdominal pain. Male symptoms include discharge from the penis, burning with urination, pain in the testicles or the abdomen.
If left untreated, chlamydia can cause ectopic pregnancy, infertility and pelvic inflammatory disease.
The disease can be treated with antibiotics.
Westmeier said the increase of chlamydia cases in Livingston is a trend occurring across Michigan.
“We’re not different,” he said.
Besides using protection during sex, Westmeier said residents should get regular exams. This is strongly recommended for people who have more than one sex partner and have unprotected sex.
As required by law, chlamydia is one of roughly 100 diseases that all doctors or labs must report when it’s diagnosed.
“It’s really a basic public health program,” Westmeier said. “We are concerned about the care of the individual and the care of the community.”

Chlamydia and gonorrhoea infections linked to pregnancy complications

Chlamydia and gonorrhoea infections linked to pregnancy complications
Becoming infected with Chlamydia Treatment or gonorrhoea in the lead-up to, or during, pregnancy, increases the risk of complications, such as stillbirth or unplanned premature birth, indicates research published online in the journal Sexually Transmitted Infections.
The researchers analysed the birth records of more than 350,000 women who had had their first baby between 1999 and 2008 in New South Wales, Australia's most heavily populated state.
The researchers wanted to find out if infection with either chlamydia or gonorrhoea in the lead-up to, or during, pregnancy, had any impact on the baby or the birth itself, as there is continuing debate about whether these infections can increase the risk of complications.
The women's birth records were linked back to state records about notifiable conditions, such as Chlamydia Cure and gonorrhoea.
Among the 354,217 women who had had their first child between 1999 and 2008, 3658 (1%) had had at least one notifiable chlamydia infection before the birth. And most (81%) of these had been diagnosed before the estimated date of conception.
Just 196 (0.6%) had been diagnosed with gonorrhoea before the birth, with most diagnoses (just under 85%) made before the estimated conception date.
Half of those diagnosed with gonorrhoea had also previously been infected with chlamydia.
In all, 4% of the women had an unplanned premature birth; 12% had babies who were small for dates; and 0.6% (2234) of the babies were stillborn.
Factors such as age, social disadvantage, smoking, and underlying conditions, such as diabetes and high blood pressure, can all increase the risk of birth complications, and this was evident among the women studied.
But even after taking account of all these influential factors, women who had had a prior infection with either chlamydia or gonorrhoea were still at heightened risk.
Women who had had chlamydia were not at increased risk of giving birth to a small for dates baby. But they were 17% more likely to have an unplanned premature birth and 40% more likely to have a stillborn baby.
Women who had had gonorrhoea were more than twice as likely to have an unplanned premature birth, but they were not at increased risk of giving birth to a small for dates baby.
There were too few women with a previous diagnosis of gonorrhoea to be able to assess the impact of the infection to stillbirth.
For women previously diagnosed with chlamydia, the risk of an unplanned premature birth did not differ between those diagnosed more than a year before conception, within a year of conception, or during the pregnancy.
The authors caution that their findings don't allow them to prove cause and effect. The infections may simply be a marker for women at high risk of birth complications.
And while there is some evidence to suggest that chronic inflammation?such as would arise particularly with chlamydia infection?can trigger an unplanned premature birth, trials of prophylactic antibiotics given to women during pregnancy, have not lowered this risk.
Nevertheless, the authors conclude: "Our results suggest that sexually transmissible infections in pregnancy and the preconception period may be important in predicting adverse obstetric outcomes."

2017年11月4日星期六

Chlamydia, gonorrhea tied to higher risk of pregnancy complications

Chlamydia, gonorrhea tied to higher risk of pregnancy complications
Women with Chlamydia Infection or gonorrhea infections before or during pregnancy are at increased risk for pregnancy complications such as stillbirth and premature birth, a new study suggests.
Researchers analyzed data from more than 350,000 Australian women who had their first child between 1999 and 2008. Of those women, 1 percent had at least one chlamydia infection before they gave birth, and 81 percent of those women were diagnosed before they became pregnant.
The study also found that 0.6 percent of the women had a gonorrhea infection before they gave birth, and nearly 85 percent of those women were diagnosed before they became pregnant. Half of the women diagnosed with gonorrhea had also previously been infected with chlamydia, found researchers Dr. Bette Liu, at the University of New South Wales, and colleagues.
Among all the women in the study, 4 percent had an unplanned premature birth, 12 percent had babies who were small for their gestational age, and 0.6 percent had stillborn babies.
After taking into account factors known to increase the risk of birth complications -- including age, poverty, smoking and health conditions such as diabetes and high blood pressure -- the researchers found that a prior infection with either chlamydia or gonorrhea also increased the risk.
Women who'd had chlamydia transmission were 17 percent more likely to have an unplanned premature birth and 40 percent more likely to have a stillborn baby. There was no increased risk of having a baby that was small for its gestational age.
For women who'd had chlamydia, the risk of an unplanned premature birth did not differ between those diagnosed with an infection more than a year before conception, within a year of conception, or during the pregnancy.
Women who had had gonorrhea were more than twice as likely to have an unplanned premature birth, but they were not at increased risk of having a baby that was small for its gestational age, according to the study published online Sept. 4 in the journal Sexually Transmitted Infections.
Not enough data existed to determine the impact that gonorrhea infection had on the risk of stillbirth.
These findings don't prove that chlamydia and gonorrhea infections actually cause pregnancy complications, but do suggest that such infections may be important in predicting pregnancy complications, the study authors concluded.

Chlamydia rise linked to testing

Chlamydia rise linked to testing
Escalating Chlamydia Infection rates in the region could be connected to more young people accessing testing services.
Data released by the Institute of Environmental Science and Research (ESR) this week show chlamydia transmission rates in the MidCentral District Health Board area have multiplied in the past year.
Between April and June, 300 positive tests for chlamydia were returned in the region - 220 from females and 80 from males.
Anne Robertson, of MidCentral Health Sexual Health Service, said the increase in chlamydia tests could be put down to more young people accessing youth health services.
The peak age range for cases reported through the ESR was between 15 and 24, she said.
"There is an apparent increase in rate looking back retrospectively but it is always difficult to assess whether this is a true increase in rate or reflection of testing patterns," she said. "When there is an increase in numbers of cases, it is hard to determine whether there is an increase in prevalence or an increase in case detection because of increased testing."
The rate of chlamydia in the region between April and June was 177 cases per 100,000 people - up from 160 at the same time last year.
The amount of tests done in the region also increased to 1759 per 100,000 and is the highest it has been in two years.
It was difficult to estimate what or when the peak would be.
"As there is current interest in increasing the provision of youth services, there may be small ongoing increases in testing," she said. "It appears recent testing may have increased disproportionately in women as there is some divergence in notifications between males and females."
Tairawhiti District Health Board has the highest rates of chlamydia, with 353 cases per 100,000.

Protecting yourself from the silent STD, Chlamydia

Protecting yourself from the silent STD, Chlamydia
Chlamydia Infection is a tricky STD and it’s on the rise. It’s silent, particularly among men, and it’s the most common STI in the UK. It’s the world’s most common cause of infertility, even though it’s preventable. But, and it’s a big but, half of all men who have it don’t know and four out of five women are similarly ignorant. This is bad news. Left untreated the disease can cause problems like ectopic pregnancy and painful infections of the testicles.
chlamydia transmission is a bacterium found in semen and vaginal fluids and is spread through vaginal, oral and anal sex or by sharing sex toys.It can live inside the cells of the cervix, urethra, rectum and sometimes the throat and eyes. The bug can cross the placenta meaning a pregnant woman could potentally pass it on to her unborn baby.
Symptoms can appear a few weeks after the bug is caught but may also take months. These include unusual vaginal discharge, bleeding between periods or after sex, pain during sex and maybe lower abdominal pain. Men may feel pain when urinating and in the testicles.If you have any suspicions that you’ve got chlamydia it’s vitally important to get tested.
We’re lucky in the UK: we have a national screening programme that gives all sexually active under-25s access to chlamydia testing, which extends to youth clubs and colleges. Any woman having an IUD fitted or having an abortion should also have a chlamydia screening test. They take several forms: a urine test, or a swab from the vagina, urethra, rectum, or throat and eyes.While chlamydia is tricky to spot, it’s easy to deal with. Antibiotics can work, although the Pill and contraceptive patches make them less effective. And there will soon be a vaccine to help you protect yourself as scientists at Southampton University have broken into the bacterium’s genetic code.
Together with researchers at Israel’s Ben-Gurion University, they have inserted foreign DNA into the bug’s genome, which means they will soon be able to map out its whole genetic code and eventually fashion a vaccine. In the meantime, an anti-chlamydia vaccine is being used on koala bears, which often carry the bug. The positive results this has produced so far could stop the koala population disseminating the disease, as many in the science world fear.

2017年11月3日星期五

Gonorrhea, Syphilis Up, Chlamydia Down in County, Health Officials Say


The number of gonorrhea cases in San Diego County last year was 10 percent higher than the year before, according to an annual report of sexually transmitted diseases by the county Health and Human Services Agency.
The number of diagnosed gonorrhea cases went from 2,597 in 2012 to 2,865 last year, with the bulk of the increase among men, officials said Monday. Women account for less than one-third of the infections reported in the county, according to the HHSA.
The agency also reported that primary and secondary syphilis cases increased by 4 percent, from 333 cases in 2012 to 347 cases last year, with the vast majority occurring in men.
Meanwhile, the number of Chlamydia Cure dropped by 4 percent, from 16,538 cases in 2012 to 16,042 in 2013.
chlamydia discharge is the most commonly reported STD in San Diego and California, and young women between 15 and 24 years of age continue to have the highest rates of infection, according to the HHSA.
“A decline in chlamydia cases was reported for the first time in several years, and that is good news for San Diego County,” said Dr. Wilma Wooten, the county’s public health officer. “However, this is just a one-year drop. Sexually active individuals should continue to take precautionary measures to avoid getting infected with chlamydia and other STDs, especially since gonorrhea and syphilis cases went up.”
STD prevention is part of the county’s “Live Well San Diego” initiative, which aims to improve the health and well-being of local residents.
“Young women are particularly susceptible to long-term complications of STDs since they can result in infertility and other long-term reproductive health problems,” said Dr. M. Winston Tilghman, a senior physician and STD controller for the county. “Individuals can decrease their risk of STDs by talking openly about them with their partners, using condoms, practicing mutual monogamy and getting tested on a regular basis.”
As in the rest of the state, profound racial disparities exist with regard to STDs. Blacks have the highest rates of chlamydia, gonorrhea and early syphilis, according to the HHSA report.

Chlamydia Cases Increase In US, Efficient Prevention and Treatment Are Needed


“More cases of sexually transmitted diseases were reported last year than ever before,” federal officials said on Oct 19, 2016. More than 1.5 million people were reported with Chlamydia Cure, the most common sexually transmitted disease (STD), the Centers for Disease Control and Prevention reported.
Among the chlamydia discharge, gay and bisexual men account for many of the new cases, and the biggest numbers are among young adults, especially those in their late teens and early 20s. "Half of all STDs occur in youth under age 20," said Mermin, director of CDC’s National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention.
In order to reduce the chlamydia cases, it’s essential to know how to have a safe sexual life. The prevention below are helpful for avoiding getting infected with chlamydia.
▪ Use condoms correctly every time you have sex.
▪ Wash your genital areas before and after sexual intercourse.
▪ Limit the number of sex partners, and do not go back and forth between partners.
▪ Practice sexual abstinence, or limit sexual contact to one uninfected partner.
▪ If you think you are infected, avoid sexual contact and see a doctor.
Though Chlamydia can be cured by antibiotics, people often don’t even know they are infected since the symptoms of this disease are unnoticeable within one to three weeks. When they noticed the signs of Chlamydia and go to get a treatment, the condition sometimes may be severe, which will increase the difficulty in curing.
Recent years, new herbal medicine called Diuretic and Anti-inflammatory Pill (for men) and Fuyan Pill (for women) are proven to have good effect on curing Chlamydia. As more and more people are realized the side effects of antibiotics, this kind of medicine may be a new trend on curing STD. The herbs in the pills can clearing away heat and toxins so that the pathogenic bacteria can be eradicated. They can also provide good effect on eliminating the pain and removing inflammation by promoting the blood and qi circulation. During the treatment, patients don’t need to take other medicines since the pills have comprehensive functions. The purely natural formula won’t do any harm to kidneys and liver. Therefore, patients can keep a continuous treatment.

Males Don’t Need To Be Afraid Of Chlamydia. It Can Be Cured Naturally!

Males Don’t Need To Be Afraid Of Chlamydia. It Can Be Cured Naturally!
Chlamydia Cure is a kind of sexually transmitted disease (STD). Through nearly 20 years of study on Chlamydia, it indicates that it can lead to various genital track diseases. Its infectious rate has exceeded the gonorrhoea, and become the STD with the highest morbidity in the world.
Commonly, males with chlamydia discharge have to suffer form a series of discomforts, such as clear or cloudy discharge form the tip of the penis, painful urination, burning and itching around the opening of the penis, pain and swelling around the testicles. These symptoms can severely affect patients’ life.
For curing Chlamydia, antibiotic treatment is the most common one. However, due to its side effects like drug resistance and tolerance, liver and kidney damages, many patients are afraid of causing further harm to the body. Recently, US’s Food and Drug Administration was asked to restrict the use of antibiotics for the development of drug resistance can do harm to humans. In fact, both the overuse and misuse of antibiotics can affect the curative effect and make the condition become more difficult to cure.
A new hope come to males with Chlamydia, a herbal medicine named Diuretic and Anti-inflammatory Pill has proven to be efficient to cure chlamydia. Since Chlamydia is caused by pathogens, the pill can work well on eradicating pathogens which can cause the disease by clearing away heat and toxins. The semen plantaginis, talc, dianthus superbus, and polygonum aviculare in this pill have the function of inducing diuresis to relieve stranguira, thus, the pain and burning sensation during the treatment can be eliminated. Besides, it can also provide good effect on promoting the circulation of blood to alleviate the pain and swelling. What’s more, it has no side effects so patients can take a continuous treatment without worrying about anything.
This herbal medication can be regarded as a natural treatment since it’s made from herbs. In addition to the treatment, male patients should also keep to the food prohibitions. As spicy and stimulating food like chili, garlic, pepper can make the condition worse, it’s of necessity to stay away form these food during the treatment.

2017年5月4日星期四

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