Chlamydia

Chlamydia is a common sexually transmitted disease (STD) caused by the bacterium, Chlamydia trachomatis, which can damage a woman's reproductive organs. Even though symptoms of chlamydia are usually mild or absent, serious complications that cause irreversible damage, including infertility, can occur "silently" before a woman ever recognizes a problem.

What is Chlamydia?

Chlamydia infection is a common sexually transmitted disease caused by the bacteria Chlamydia trachomatis, a strain of bacteria from the Chlamydiaceae family that usually affects the urogenital tract.

Chlamydia Diagnosis

Chlamydia Treatment

Chlamydia Symptoms

Chlamydia Screening

What are Complications of Chlamydia?

Chlamydia Infection Pathophysiology

Latest Chlamydia News and Research

Congenital syphilis remains a threat to healthy births despite screening

Congenital syphilis remains a critical issue in remote Australia, with healthcare barriers undermining effective STI screening and increasing pregnancy risks.

25 Jul 2025

Senegal becomes ninth African country to eliminate trachoma

The World Health Organization (WHO) has validated Senegal as having eliminated trachoma as a public health problem. Senegal becomes the ninth country in WHO's African Region to have achieved this feat.

15 Jul 2025

New WHO guidelines recommend injectable lenacapavir for HIV prevention

The World Health Organization (WHO) released today new guidelines recommending the use of injectable lenacapavir (LEN) twice a year as an additional pre-exposure prophylaxis (PrEP) option for HIV prevention, in a landmark policy action that could help reshape the global HIV response.

14 Jul 2025

Chlamydia pneumoniae and SARS-CoV-2 infections may play a role in Alzheimer's pathogenesis

A recent review by researchers at Philadelphia College of Osteopathic Medicine (PCOM) shows Chlamydia pneumoniae (Cpn) and SARS-CoV-2 infections may play a role in the pathogenesis of Alzheimer's disease.

13 Jul 2025

Burundi eliminates trachoma and sets example for disease control in Africa

The World Health Organization (WHO) has validated Burundi as having eliminated trachoma as a public health problem, making it the eighth country in WHO's African Region to reach this important milestone.

11 Jul 2025

Synthetic Biology and the Pursuit of Living Diagnostics and Therapeutics

In this interview, Professor James J. Collins, founder of the field of Synthetic Biology, discusses his journey to founding the field of synthetic biology and the potential of living diagnostics.

From Pittcon 7 Jul 2025

Research highlights an increase in informal use of doxyPEP/PrEP among key populations in the Netherlands

New research analyzing an online survey of 1,633 respondents found 15% recent use of doxycycline post- and pre-exposure prophylaxis (doxyPEP/PrEP) among men who have sex with men (MSM), transgender and gender diverse people in the Netherlands according to a recent study published by Eurosurveillance.

4 Jul 2025

New funding boosts development of rapid test for sexually transmitted infections

Birmingham spin-out Linear Diagnostics has been awarded £1m funding to finalizse the development of a rapid test for sexually transmitted infections (STIs), in partnership with the NIHR HealthTech Research Centre (HRC) in Diagnostic and Technology Evaluation and the North East Innovation Lab, part of Newcastle Hospitals.

5 Jun 2025

Metagenomic next-generation sequencing improves pulmonary infection diagnosis

A recent study on the application of Metagenomic next-generation sequencing (mNGS) found that mNGS can achieve early detection of pathogens and accelerate the development of targeted anti-infection treatment plans, thereby improving treatment outcomes and patient prognosis.

23 May 2025

New molecule offers hope for chlamydia treatment

Researchers at Umeå University, Sweden, and Michigan State University, USA, have discovered a type of molecule that can kill chlamydia bacteria but spare bacteria that are important for health.

8 May 2025

HIV testing and outreach falter as Trump funding cuts sweep the South

Storm clouds hung low above a community center in Jackson, where pastor Andre Devine invited people inside for lunch. Hoagies with smoked turkey and ham drew the crowd, but several people lingered for free preventive health care: tests for HIV and other diseases, flu shots, and blood pressure and glucose monitoring.

6 May 2025

Disparities identified in treatment of chlamydia and gonorrhea in primary care

Prompt treatment of chlamydia and gonorrhea following a confirmed diagnosis is essential to prevent complications and reduce transmission. Adherence to the Centers for Disease Control (CDC) treatment guidelines in primary care settings remains a concern.

24 Mar 2025

New STI impacts 1 in 3 women: Landmark study reveals men are the missing link

A landmark study reveals that bacterial vaginosis (BV), a condition affecting nearly a third of women worldwide and causing infertility, premature births and newborn deaths, is in fact a sexually transmitted infection (STI), paving the way for a revolution in how it is treated.

5 Mar 2025

Addressing the global challenge of bacterial STIs

According to the World Health Organization (WHO), hundreds of millions of new cases of bacterial sexually transmitted infections (STIs) are reported worldwide each year. Many infections go undiagnosed due to their often silent symptoms, contributing to transmission, disease and complications such as infertility and miscarriage.

14 Feb 2025

New study links cervicovaginal microbiome to increased risk of Chlamydia infections

The cervicovaginal microbiome's role in Chlamydia infections underscores the need for molecular classification to enhance prevention and treatment strategies.

17 Jan 2025

New research identifies key subtype of bacterial vaginosis that increases chlamydia risk

Women who develop bacterial vaginosis (BV) often later acquire chlamydia, a common and potentially serious sexually transmitted bacterial infection.

16 Jan 2025

Early results of doxy PEP rollout show mixed impact on STIs

As health care services begin offering doxycycline to prevent bacterial sexually transmitted infections (STIs), real-world evidence demonstrates that the postexposure strategy, called doxy PEP, is reducing the rate of syphilis and chlamydia, but has had little to no effect on gonorrhea and needs close monitoring for signals of antibiotic resistance.

6 Jan 2025