Related Experiment Video
Updated: Jan 29, 2026
08:15
Humanized NOG Mice for Intravaginal HIV Exposure and Treatment of HIV Infection
Published on: January 31, 2020
9.1K
HPV Vaccination Completion Among Men Who Have Sex with Men Using HIV Pre-Exposure Prophylaxis in Brazil: A
Alvaro Francisco Lopes de Sousa1,2, Lariane Angel Cepas3, Isadora Silva de Carvalho3
1Campus de Três Lagoas, Universidade Federal de Mato Grosso do Sul, Três Lagoas 79070-900, MS, Brazil.
Vaccines
|January 28, 2026
Summary
Complete HPV vaccination is achieved by 59.4% of men who have sex with men (MSM) using HIV pre-exposure prophylaxis (PrEP) in Brazil. Factors like having casual partners and using lubricant were linked to higher vaccination rates.
Area of Science:
- Public Health
- Epidemiology
- Infectious Disease Prevention
Background:
- Men who have sex with men (MSM) using HIV pre-exposure prophylaxis (PrEP) face a high burden of human papillomavirus (HPV) infection.
- Data on HPV vaccination completion among this key population in Brazil are limited.
Purpose of the Study:
- To determine the prevalence of complete HPV vaccination among MSM using PrEP in Brazil.
- To identify factors associated with HPV vaccination completion in this demographic.
Main Methods:
- A cross-sectional online survey was conducted from May to September 2025.
- Participants included 872 MSM (≥18 years) in Brazil using oral PrEP, recruited via social media and gay geosocial apps.
- Data on sociodemographics, sexual behavior, and STI history were collected; complete vaccination was self-reported.
Main Results:
- Overall, 59.4% of MSM using PrEP reported complete HPV vaccination.
- Complete vaccination was associated with having steady and/or casual partners, lubricant use, and recent chlamydia/gonorrhea diagnoses.
Conclusions:
- HPV vaccination coverage is higher in Brazilian MSM using PrEP compared to the general MSM population but remains suboptimal.
- Integrating HPV vaccination assessment and delivery into PrEP care could improve completion rates and reduce HPV-related disease burden.
Related Concept Videos
01:50Cross-Sectional Research
12.5K
In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...
12.5K
01:51Vaccinations
51.5K
Overview
51.5K
01:24Finding Volume Using Cross-Sectional Area
61
For solids whose cross-sectional areas vary in a predictable way, volume can be determined by integrating these areas along an axis perpendicular to the slices. This approach is particularly useful for polyhedral solids, where classical geometric formulas may not be immediately applicable. A tetrahedron provides a clear example of how cross-sectional integration can be applied to a three-dimensional object with continuously changing geometry.Consider a tetrahedron with height h and a base that...
61
01:26Profile Leveling and Cross Sections
1.6K
Profile leveling and cross-sections are surveying methods used to determine and document terrain elevations for infrastructure projects such as highways, railroads, canals, and pipelines. These methods provide data for earthwork planning and alignment of proposed routes. Profile leveling involves measuring elevations along a fixed line to create a vertical terrain profile. A surveyor sets up a leveling instrument at the benchmark (BM) and records a backsight (BS) to determine the...
1.6K
01:16Spinal Cord: Cross-sectional Anatomy
4.6K
The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
Gray Matter and its Components
Central to the gray matter is...
Gray Matter and its Components
Central to the gray matter is...
4.6K
01:34Crossing Over
171.7K
Unlike mitosis, meiosis aims for genetic diversity in its creation of haploid gametes. Dividing germ cells first begin this process in prophase I, where each chromosome—replicated in S phase—is now composed of two sister chromatids (identical copies) joined centrally.
The homologous pairs of sister chromosomes—one from the maternal and one from the paternal genome—then begin to align alongside each other lengthwise, matching corresponding DNA positions in a process...
The homologous pairs of sister chromosomes—one from the maternal and one from the paternal genome—then begin to align alongside each other lengthwise, matching corresponding DNA positions in a process...
171.7K