Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Resurgence and spread of syphilis in China is a rapidly increasing epidemic

15.01.2007
The resurgence and spread in China of syphilis, an infection eliminated there from 1960 to 1980, represents a rapidly increasing pidemic calling for urgent intervention, ccording to authors of a new report documenting rising infection rates.

"Syphilis has returned to China with a vengeance. The data demonstrates a syphilis epidemic of such scope and magnitude that it will require terrific effort to intervene," said Dr. Myron S. Cohen, the J. Herbert Bate distinguished professor of medicine, microbiology and immunology, and public health, and director of the Center for Infectious Diseases at the University of North Carolina at Chapel Hill School of Medicine.

Cohen and co-authors from China collected and assessed data from China's national sexually transmitted disease (STD) surveillance system and sentinel site network. The total incidence of syphilis in all of China's counties increased from less than 0.2 cases per 100,000 people in 1993 to 6.5 cases per 100,000 in 1999, the study shows. Of the three categories of disease - primary, secondary and tertiary - the first two represented 5.7 cases per 100,000 people in 2005. This latter incidence is substantially higher than in most developed countries, including the U.S., which reported 2.7 cases of primary and secondary syphilis in 2004, the researchers note.

The results appear in the Jan. 13, 2007 issue of the journal Lancet. The research was supported by special funding from the National Institutes of Health Fogarty-Ellison Fellowship and the UNC Center for AIDS Research.

Also alarming is the rate of congenital syphilis, Cohen said, which has increased from 0.01 cases per 100,000 live births in 1991 to 19.68 cases in 2005 - an average yearly rise of 71.9 percent. Congenital syphilis occurs when a pregnant woman with syphilis passes the infection to her baby in the womb. Many cases result in miscarriage or stillbirth, and surviving babies may have serious problems of the brain, liver, and other organs.

The study authors link the rise in syphilis infection rates to economic reforms and globalization in China. These changes have led to income gaps and a cultural climate that favors re-emergence of prostitution due to a substantial majority of men and a large migrant population of male workers, the report says. Changing social practices such as people experimenting with sex at earlier ages and before marriage, as well as increasing costs of individual health care, also contribute.

Syphilis was first recognized in ainland China in 1505. By the time the Communist party assumed power in 1949, "the Chinese were suffering one of the biggest syphilis epidemics in human history," the authors said. Mao Zedong and his government made syphilis treatment and prevention a priority and launched a prolonged campaign beginning in 1952 to eliminate STDs, Cohen said. By 1964, syphilis was rare and the infection virtually eliminated until China opened its international borders in the early 1980s.

The virtual absence of syphilis in China for 20 years means the general population of young, sexually active individuals has no natural immunity to the disease, according to the authors. "Sexually active individuals would be completely susceptible to this infection," the report states. Cohen also notes that syphilis also increase the risk of both transmitting and getting infected with HIV, the virus that causes AIDS.

Cohen, who has worked in China since 1979, designed and planned the research along with co-author Dr. Xiang-Sheng Chen of the National Center for STD Control in Nanjing. Cohen said the development of longstanding collaborations with the center helped make the report possible.

"This report helps to demonstrate the openness with which China is trying to approach epidemics of infectious diseases. The data we now have provides important clues as to where the authorities in China should put their resources," Cohen said.

A "formal and aggressive" China Syphilis Working Group has formed through partnerships involving UNC, China's National Center for STD Control, the World Health Organization, the United Nations Center for Disease Control and the London School of Hygiene, Cohen said.

Stephanie Crayton | EurekAlert!
Further information:
http://www.unc.edu

More articles from Health and Medicine:

nachricht Team discovers how bacteria exploit a chink in the body's armor
20.01.2017 | University of Illinois at Urbana-Champaign

nachricht Rabies viruses reveal wiring in transparent brains
19.01.2017 | Rheinische Friedrich-Wilhelms-Universität Bonn

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>