Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Birth Control Methods01:22

Birth Control Methods

Vasectomy is a surgical form of male sterilization that involves severing and sealing the vasa deferentia, preventing sperm from mixing with semen during ejaculation. Because a vasectomy does not impact the testes' ability to produce testosterone, hormone levels, libido, and sexual function generally remain unchanged. While vasectomy is highly effective in preventing pregnancy, with a success rate near 99.85%, rare cases of recanalization (spontaneous reconnection) can occur. Although vasectomy...
Intrauterine Drug Delivery Systems01:21

Intrauterine Drug Delivery Systems

Controlled-release systems for intravaginal and intrauterine drug delivery have been developed primarily for the administration of contraceptive steroid hormones. These delivery routes circumvent first-pass hepatic metabolism, thereby enhancing bioavailability and allowing for reduced systemic dosages compared to oral administration. Such approaches contribute to improved therapeutic efficacy and patient compliance, particularly in long-term contraceptive regimens.Intravaginal Drug Delivery...
Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
Sexually Transmitted Infections01:26

Sexually Transmitted Infections

Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
Retrovirus Life Cycles01:10

Retrovirus Life Cycles

Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the retrovirus to...
Sperm Structure and Semen Composition01:22

Sperm Structure and Semen Composition

During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Stressors Associated with Tobacco Use Among Trans Women.

Transgender health·2023
Same author

Family-Related Factors and HIV-Related Outcomes Among Black Young Men Who Have Sex with Men in Mississippi.

AIDS and behavior·2022
Same author

Socio-Ecological Influences on HIV Care Engagement: Perspectives of Young Black Men Who Have Sex with Men Living with HIV in the Southern US.

Journal of racial and ethnic health disparities·2022
Same author

Living at the Confluence of Stigmas: PrEP Awareness and Feasibility Among People Who Inject Drugs in Two Predominantly Rural States.

AIDS and behavior·2021
Same author

Undetectable or Unknown? A Longitudinal Event-Level Analysis of Disclosure of HIV Serostatus and Undetectability Among Gay, Bisexual, and Other Men Who have Sex with Men (gbMSM) in Metro Vancouver.

AIDS and behavior·2021
Same author

Acceptability of a Computer-Tailored Safer Sex Intervention for Heterosexually Active African Americans Attending an STI Clinic.

The journal of primary prevention·2020

Related Experiment Video

Updated: May 24, 2026

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility
04:22

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Published on: May 30, 2025

Condom effectiveness: where are we now?

Richard Crosby1, Sarah Bounse

  • 1College of Public Health, University of Kentucky, 121 Washington Avenue, Lexington, KY 40506-0003, USA. crosby@uky.edu

Sexual Health
|February 22, 2012
PubMed
Summary

Prospective studies show condoms are reasonably effective against sexually transmissible infections, including HIV. Improving study rigor by addressing recall periods and condom use errors is crucial for accurate effectiveness evaluation.

Area of Science:

  • Public Health
  • Epidemiology
  • Sexual Health Research

Background:

  • Condom effectiveness studies are complex and prone to biases that may underestimate protection.
  • Accurately determining the timing of infection relative to condom use is a significant methodological challenge.

Purpose of the Study:

  • To assess the current knowledge base and methodology of condom effectiveness studies.
  • To identify critical improvements for future research on condoms and sexually transmissible infections (STIs).

Main Methods:

  • Review of prospective cohort studies evaluating condom effectiveness.
  • Focused assessment of methodological challenges and sources of bias in existing research.

Main Results:

More Related Videos

Fluorimetric Techniques for the Assessment of Sperm Membranes
08:58

Fluorimetric Techniques for the Assessment of Sperm Membranes

Published on: November 28, 2018

U-Shaped Horizontal Swimming Technique for Preparing High-Quality Sperm with Low DNA Fragmentation Index
09:16

U-Shaped Horizontal Swimming Technique for Preparing High-Quality Sperm with Low DNA Fragmentation Index

Published on: March 28, 2025

Related Experiment Videos

Last Updated: May 24, 2026

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility
04:22

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Published on: May 30, 2025

Fluorimetric Techniques for the Assessment of Sperm Membranes
08:58

Fluorimetric Techniques for the Assessment of Sperm Membranes

Published on: November 28, 2018

U-Shaped Horizontal Swimming Technique for Preparing High-Quality Sperm with Low DNA Fragmentation Index
09:16

U-Shaped Horizontal Swimming Technique for Preparing High-Quality Sperm with Low DNA Fragmentation Index

Published on: March 28, 2025

  • Study biases often favor the null hypothesis, potentially masking condom efficacy.
  • Misclassification bias is a major issue, stemming from difficulties in timing infection relative to condom use.
  • Despite limitations, current prospective studies suggest a favorable evaluation of condom effectiveness.
  • Conclusions:

    • Enhancing study rigor through better recall periods, precise self-reporting, and accounting for use errors is essential.
    • Future studies must minimize error variance to avoid Type 2 errors that obscure the true value of condoms in STI prevention.