Community intervention of a single-dose or 2-dose regimen of bivalent human papillomavirus vaccine in schoolgirls in Thailand: vaccine effectiveness 2 years and 4 years after vaccination

First-void urine samples showed significantly higher detection rates of HPV-specific IgG antibodies compared to midstream urine, confirming the necessity of capturing the initial stream. The study found no significant difference between 10 mL and 20 mL collection volumes, indicating flexibility in device specifications for self-collection.

The importance of first-void urine for assessing HPV-specific antibodies: A comparison with midstream urine — Van Caesbroeck et al., Human vaccines & immunotherapeutics · source ↗

• first-void
• sti
• self-collection
• serology
• hpv
• urine

First-void urine sampling detected 33% prevalence of 28 HPV types in 16-21-year-old Ugandan females. HPV16/18 prevalence was markedly lower among vaccinated participants (1.4%) than unvaccinated (5.6%), though vaccine coverage was suboptimal with inconsistent dosing. This validates patient-centric urine microsampling for decentralised infectious disease surveillance in resource-limited settings.

Human papillomavirus infection and vaccination among young females in rural Uganda — Newton et al., International journal of cancer (paywalled) · source ↗

• urine
• first-void
• serology
• hpv

A time-resolved fluorescence assay detected HPV16-specific IgG in first-void urine with strong correlation to paired serum across four immunoassays in 225 healthy women, supporting first-void urine as a non-invasive alternative to venous blood for HPV antibody monitoring.

Time-resolved fluorescence (TRF) for total IgG and HPV16-specific antibody detection in first-void urine and serum: A comparative study — Lipovac et al., Journal of virological methods · source ↗

• urine
• first-void
• validation
• venous-agreement
• serology
• hpv

First-void urine IgG remained stable for at least 14 days at room temperature when stored with conservation medium. Amicon filtration with Melon Gel purification enriched HPV16-specific IgG that correlated strongly with serum levels, supporting non-invasive disease monitoring and vaccine impact assessment.

Stability, enrichment, and quantification of total and HPV16-specific IgG present in first-void urine — Téblick et al., Scientific reports · source ↗

• urine
• first-void
• validation
• serology
• hpv

The bivalent HPV vaccine showed 100 percent effectiveness against vaccine types 16 and 18 seven years post-vaccination in Thai schoolgirls, but only 32.8 percent effectiveness against other high-risk types, indicating limited cross-protection. The study used first-void urine self-collection for HPV DNA detection, demonstrating a scalable, non-invasive approach for vaccine effectiveness monitoring in decentralised settings.

Effectiveness of HPV vaccine as part of national immunization program for preventing HPV infection in Thai schoolgirls after seven years post-vaccination — Nilyanimit et al., Human vaccines & immunotherapeutics · source ↗

• first-void
• sti
• self-collection
• serology
• hpv
• urine