Related Experiment Video
Updated: Mar 12, 2026

Recurrent Escherichia coli Urinary Tract Infection Triggered by Gardnerella vaginalis Bladder Exposure in Mice
Published on: December 4, 2020
[Prevalence of bacterial vaginosis and associated factors in twenty peruvian cities]
Lorena López-Torres1, Marina Chiappe1, César Cárcamo1
1Unidad de Epidemiología, ETS y VIH, Facultad de Salud Pública y Administración Carlos Vidal Layseca, Universidad Peruana Cayetano Heredia. Lima, Perú.
Objetives.:
To determine the prevalence of bacterial vaginosis (BV) and associated factors among 18-29-year-old women in 20 Peruvian cities using PREVEN project data.
Materials And Methods.:
In this cross-sectional study, BV was defined using previously provided vaginal discharge samples on slides, which were Gram stained and observed under a microscope to determine the Nugent scores. A BV diagnosis was applied to samples with scores of 7-10. Prevalence ratios (PR) and 95% confidence intervals (95% CI) were estimated using generalized linear models.
Results.:
A total of 6,322 women participated in the epidemiological survey and provided vaginal swabs. The prevalence of BV was 23.7% (95% CI: 22.6-24.7) and was associated with a greater number of sexual partners in the last 12 months (PR: 1.22, 95% CI: 1.03-1.44, p=0.020 for two partners; PR: 1.46, 95% CI: 1.23-1.74, p<0.001 for three or more partners), not using a condom during last intercourse (PR: 1.16, 95% CI: 1.01-1.34, p=0.034), being a sierra resident (PR: 1.18, 95% CI: 1.05-1.31, p=0.004), and having abnormal vaginal discharge or a bad smell (PR: 1.20, 95% CI: 1.09-1.33, p<0.001).
Conclusions.:
The high prevalence of BV highlights the need to strengthen health services aimed at the detection and treatment of this condition.
Related Concept Videos
Factors Affecting the Risk of Infection
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
Prevalence and Incidence
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
Sexually Transmitted Infections
Bacterial Phylum Verrucomicrobiota
Bacterial Flora of the Large Intestine
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
Vagina

