Taking the opportunity of COVID testing to screen vulnerable populations for hepatitis B, hepatitis C, syphilis, and human immunodeficiency virus in Central Brazil.

Publication date: Jul 11, 2025

Vulnerable populations were disproportionally affected by the coronavirus disease 2019 (COVID-19) pandemic and its peak periods disrupted progress toward the control and prevention of sexually transmitted infections (STIs). This study aimed to investigate the prevalence and factors associated with hepatitis B virus (HBV), hepatitis C virus (HCV), syphilis, and human immunodeficiency virus (HIV) among socio-economically vulnerable populations during the COVID-2019 pandemic in Goiania, Central Brazil. A total of 627 individuals, including lesbian, gay, bisexual, and transgender people, homeless individuals, waste recyclable collectors, and immigrants/refugees, were tested for these infections. Multiple Poisson regression models were used to analyze the factors associated with each outcome. HBV exposure markers were found in 16. 1% of participants, antibodies against HCV (anti-HCV) in 1. 9%, syphilis in 17. 2%, and antibodies against HIV (anti-HIV) in 6. 1%. Thirty-two individuals exhibited serological evidence of active syphilis, whereas HBV deoxyribonucleic acid and HCV ribonucleic acid were detected in six and two individuals, respectively. Increased age was statistically associated with HCV, HBV, and syphilis; identifying as LGBT and reporting a history of STIs was associated with syphilis and HIV. Illicit drug use was associated with HCV and HIV, whereas being an immigrant/refugee or engaging in transactional sex was linked to HBV. Homelessness and reporting a higher number of sexual partners in the previous month were associated with syphilis. High prevalence rates of these infections were identified, with many participants showing evidence of active infections, increasing the risk of transmission. Specific risk behaviors were associated with each infection, emphasizing the need to tailor prevention strategies to address these behaviors effectively.

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Concepts Keywords
Antibodies Adolescent
Brazil Adult
Coronavirus Brazil
Homeless COVID-19
Lesbian Female
Hepacivirus
Hepatitis B
Hepatitis C
HIV Infections
Humans
Ill-Housed Persons
Male
Mass Screening
Middle Aged
Prevalence
SARS-CoV-2
Syphilis
Vulnerable Populations
Young Adult

Semantics

Type Source Name
disease MESH hepatitis B
pathway KEGG Hepatitis B
disease MESH hepatitis C
pathway KEGG Hepatitis C
disease MESH syphilis
disease IDO immunodeficiency
disease MESH coronavirus disease 2019
disease MESH sexually transmitted infections
disease MESH infections
disease IDO deoxyribonucleic acid
disease IDO ribonucleic acid
disease IDO history
disease IDO infection
disease MESH hepatitis
disease IDO process
drug DRUGBANK Coenzyme M
disease MESH morbidity
disease MESH acquired immunodeficiency syndrome
disease MESH cirrhosis
disease MESH hepatocellular carcinoma
pathway KEGG Hepatocellular carcinoma
disease MESH complications
disease MESH social stigma
pathway REACTOME Reproduction
drug DRUGBANK Ethanol
disease IDO blood
drug DRUGBANK Hepatitis B Vaccine (Recombinant)
disease IDO assay
disease MESH HIV Infections

Original Article

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