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1.
Sex Transm Dis ; 51(7): e31-e35, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38465975

RESUMEN

BACKGROUND: Designathons can be used to enhance public health training and spur innovation. A designathon is a 3-stage participatory activity that includes preparation, intensive collaboration, and follow-up activities. We organized a designathon focused on developing actionable sexually transmitted disease (STD) control strategies and examined the content of ideas resulting from an STD designathon. METHODS: For this designathon, we created four groups: early career researchers, silver group (people with >10 years of experience), travelers (people from low- and middle-income countries and those who received a conference scholarship) and a community group. Each group developed its own plan to consult members, iteratively develop ideas, and aggregate insights. Each group developed STD control strategies that were presented. Cross-cutting themes across these ideas were identified. RESULTS: Designathon participants included a subset of conference participants. Cross-cutting themes from final ideas included cocreating STD interventions with end-users, using sex-positive framing, enhancing open access digital STD resources, and reducing STD stigma. Early career researchers presented a call for community ideas focusing on ending STD epidemics by increasing accessibility to STD care services among all populations. The silver group proposed digital innovations, including an AI-powered tool for testing and treatment and a social game to promote sex positivity. The traveler group conceptualized an information hub to support implementation of STD programs. Community members underscored the importance of a more human-centered approach to STD control, which reduces stigma and normalizes sex and sexual pleasure. CONCLUSION: Sex positive campaigns and open access digital resources should be considered within STD programs. Implementation research studies are needed to evaluate these ideas.


Asunto(s)
Enfermedades de Transmisión Sexual , Humanos , Enfermedades de Transmisión Sexual/prevención & control , Salud Pública , Congresos como Asunto , Estigma Social , Masculino , Femenino
2.
BMC Health Serv Res ; 24(1): 842, 2024 Jul 25.
Artículo en Inglés | MEDLINE | ID: mdl-39061055

RESUMEN

Option B + provides lifelong ART to pregnant and breastfeeding women with HIV to reduce mother-to-child transmission of HIV (eMTCT) and improve maternal health. The effectiveness of Option B + relies on continuous engagement, but suboptimal monitoring of HIV care hinders our measurements of engagement. Process mapping and quality improvement (PROMAQI) is a quality improvement strategy for healthcare workers (HCWs) to optimize complex processes such as monitoring HIV care. We assessed the acceptability and feasibility of the PROMAQI among HCWs and identified barriers and facilitators for PROMAQI implementation. A cross-sectional study using a mixed method approach was conducted from August 2021 to March 2022 across five urban health facilities participating in PROMAQI implementation n the Lilongwe district, Malawi. We assessed PROMAQI acceptability and feasibility at the end of the study. A 5-point Likert (1 = worst to 5 = best) scale tool was administered to 110 HCWs (n = 15-33 per facility) involved in PROMAQI implementationThese data were analysed using descriptive statistics Among the 110 HCWs, twenty-two (QI team (n = 11) and QI implementers (n = 11)) were purposively selected for in-depth interviews. Thematic analysis was conducted using deducted and inductive approaches. The theoretical framework for acceptability (TFA) was used to identify reasons for acceptability. The Consolidated Framework for Implementation Research (CFIR) was used to characterize the barriers and facilitators of PROMAQI implementation. HCWs recruited had a median age of 37 (32-43) years, 82.0% of whom were female. Most (42%) had completed secondary education, and 84% were nurses and community health workers. The median (IQR) acceptability and feasibility scores for the PROMAQI were 5 (IQR 4-5) and 4 (IQR 4-5), respectively. Reasons for high PROMAQI acceptability included addressing a relevant gap and improving performance. Perceived implementation barriers included poor work attitudes, time constraints, resource limitations, knowledge gaps, and workbook difficulties. The facilitators included communication, mentorship, training, and financial incentives. PROMAQI is a highly acceptable and feasible tool for monitoring engagement of women in Option B + . Addressing these barriers may optimize the implementation of PROMAQI. Scaling up PROMAQI may enhance retention in the Option B + program and facilitate eMTCT.


Asunto(s)
Estudios de Factibilidad , Infecciones por VIH , Personal de Salud , Mejoramiento de la Calidad , Humanos , Femenino , Malaui , Estudios Transversales , Embarazo , Adulto , Personal de Salud/psicología , Infecciones por VIH/prevención & control , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Lactancia Materna
3.
J Antimicrob Chemother ; 78(8): 1982-1991, 2023 08 02.
Artículo en Inglés | MEDLINE | ID: mdl-37352017

RESUMEN

OBJECTIVES: Global antimicrobial resistance (AMR) surveillance in Neisseria gonorrhoeae is essential. In 2017-18, only five (10.6%) countries in the WHO African Region reported to the WHO Global Gonococcal Antimicrobial Surveillance Programme (WHO GASP). Genomics enhances our understanding of gonococcal populations nationally and internationally, including AMR strain transmission; however, genomic studies from Africa are extremely scarce. We describe the gonococcal genomic lineages/sublineages, including AMR determinants, and baseline genomic diversity among strains in Uganda, Malawi and South Africa, 2015-20, and compare with sequences from Kenya and Burkina Faso. METHODS: Gonococcal isolates cultured in Uganda (n = 433), Malawi (n = 154) and South Africa (n = 99) in 2015-20 were genome-sequenced. MICs were determined using ETEST. Sequences of isolates from Kenya (n = 159), Burkina Faso (n = 52) and the 2016 WHO reference strains (n = 14) were included in the analysis. RESULTS: Resistance to ciprofloxacin was high in all countries (57.1%-100%). All isolates were susceptible to ceftriaxone, cefixime and spectinomycin, and 99.9% were susceptible to azithromycin. AMR determinants for ciprofloxacin, benzylpenicillin and tetracycline were common, but rare for cephalosporins and azithromycin. Most isolates belonged to the more antimicrobial-susceptible lineage B (n = 780) compared with the AMR lineage A (n = 141), and limited geographical phylogenomic signal was observed. CONCLUSIONS: We report the first multi-country gonococcal genomic comparison from Africa, which will support the WHO GASP and WHO enhanced GASP (EGASP). The high prevalence of resistance to ciprofloxacin (and empirical use continues), tetracycline and benzylpenicillin, and the emerging resistance determinants for azithromycin show it is imperative to strengthen the gonococcal AMR surveillance, ideally including genomics, in African countries.


Asunto(s)
Antibacterianos , Gonorrea , Humanos , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Neisseria gonorrhoeae , Azitromicina/farmacología , Malaui , Sudáfrica , Uganda/epidemiología , Farmacorresistencia Bacteriana , Gonorrea/epidemiología , Gonorrea/tratamiento farmacológico , Ciprofloxacina/farmacología , Pruebas de Sensibilidad Microbiana , Tetraciclina/farmacología , Genómica
4.
Sex Transm Dis ; 50(11): 753-759, 2023 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-37824787

RESUMEN

BACKGROUND: Genital ulcer diseases (GUDs) are a common syndrome associated with sexually transmitted infections. Genital ulcer diseases increase the risk of HIV transmission, necessitating appropriate diagnosis and treatment. We provide an updated GUD etiology assessment in Malawi to guide diagnostic development and treatment algorithms. METHODS: We enrolled patients 18 years or older presenting with GUD at a sexually transmitted infection clinic in Lilongwe, Malawi, between May and October 2021. We purposively sampled by HIV status. Swabs of ulcers were tested for Treponema pallidum, herpes simplex virus (HSV)-1 and HSV-2, Haemophilus ducreyi, and Chlamydia trachomatis using polymerase chain reaction. Blood was collected for syphilis and HSV-2 serologies and acute HIV testing. Participants were treated per Malawi guidelines. Ulcer resolution (size reduced by >50%) was evaluated 14 days later. RESULTS: Fifty participants enrolled (30 without HIV, 2 with acute HIV infection, 18 with HIV seropositivity; 32 men, 18 women). Forty-six (92%) had an etiology identified. Syphilis was more common among those without HIV (22 of 30 [73%]) than participants with HIV (PWH; 8 of 20 [40%]; P = 0.04). Herpes simplex virus was more common among PWH (11 of 20 [55%]) than participants without (2 of 30 [7%]; P = 0.0002). One-fifth (9 of 50 [18%]) had H. ducreyi. Among those who returned for follow-up (n = 45), 9 (20%) had unresolved ulcers; persistent GUD was slightly more common in PWH (6 of 19 [32%]) than participants without (3 of 26 [12%]; P = 0.14). CONCLUSIONS: We observed a dramatic increase in syphilis ulcer proportion in a population whose GUDs were previously HSV predominant. Observed differences in etiology and resolution by HIV status could play an important role in the ongoing transmission and treatment evaluation of GUD.


Asunto(s)
Enfermedades de los Genitales Masculinos , Infecciones por VIH , Herpes Genital , Herpesvirus Humano 1 , Enfermedades de Transmisión Sexual , Sífilis , Masculino , Humanos , Femenino , Úlcera/epidemiología , Úlcera/etiología , Infecciones por VIH/complicaciones , Infecciones por VIH/epidemiología , Sífilis/complicaciones , Sífilis/epidemiología , Sífilis/diagnóstico , Malaui/epidemiología , Enfermedades de Transmisión Sexual/epidemiología , Herpesvirus Humano 2 , Genitales , Herpes Genital/complicaciones , Herpes Genital/epidemiología , Enfermedades de los Genitales Masculinos/etiología
5.
AIDS Behav ; 27(11): 3612-3622, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37195470

RESUMEN

Understanding depression, alcohol use, and sexual behaviors according to HIV infection stage and diagnosis timing is important for HIV prevention efforts. We enrolled persons with recent infection and diagnosis (i.e., acute HIV infection (AHI) (n = 92) persons newly diagnosed seropositive (n = 360)) and persons previously diagnosed with HIV (n = 190) into a randomized controlled trial in Lilongwe, Malawi (N = 641) and estimated the prevalence of probable depression (Patient Health Questionnaire-9 ≥ 5), hazardous alcohol use (Alcohol Use Disorder Identification Test-C: men ≥ 4; women ≥ 3), and sexual behaviors (transactional sex, condomless sex). Compared with previously diagnosed participants, participants newly seropositive and those with AHI reported a higher proportion of probable depression (7%, 27%, 38%; AHI/Previous: Table Probability: 0.02, p < 0.01; AHI/New: Table Probability: <0.01, p < 0.01), hazardous alcohol use (8%, 18%, 29%; AHI/Previous and AHI/New: Table Probability: <0.01, p < 0.01), and transactional sex (5%, 14%, 20%; AHI/Previous: Table Probability: <0.01, p < 0.01; AHI/New: Table Probability: 0.06, p = 0.24), respectively. HIV prevention services addressing mental health and alcohol misuse may be particularly beneficial for persons with recent HIV infection and or diagnosis.

6.
Antimicrob Agents Chemother ; 66(5): e0025122, 2022 05 17.
Artículo en Inglés | MEDLINE | ID: mdl-35465683

RESUMEN

The continued emergence of Neisseria gonorrhoeae isolates which are resistant to first-line antibiotics has reinvigorated interest in alternative therapies such as expanded use of gentamicin (Gen). We hypothesized that expanded use of Gen promotes emergence of gonococci with clinical resistance to this aminoglycoside. To understand how decreased susceptibility of gonococci to Gen might develop, we selected spontaneous low-level Gen-resistant (GenR) mutants (Gen MIC = 32 µg/mL) of the Gen-susceptible strain FA19. Consequently, we identified a novel missense mutation in fusA, which encodes elongation factor G (EF-G), causing an alanine (A) to valine (V) substitution at amino acid position 563 in domain IV of EF-G; the mutant allele was termed fusA2. Transformation analysis showed that fusA2 could increase the Gen MIC by 4-fold. While possession of fusA2 did not impair either in vitro gonococcal growth or protein synthesis, it did result in a fitness defect during experimental infection of the lower genital tract in female mice. Through bioinformatic analysis of whole-genome sequences of 10,634 international gonococcal clinical isolates, other fusA alleles were frequently detected, but genetic studies revealed that they could not decrease Gen susceptibility in a similar manner to fusA2. In contrast to these diverse international fusA alleles, the fusA2-encoded A563V substitution was detected in only a single gonococcal clinical isolate. We hypothesize that the rare occurrence of fusA2 in N. gonorrhoeae clinical isolates is likely due to a fitness cost during infection, but compensatory mutations which alleviate this fitness cost could emerge and promote GenR in global strains.


Asunto(s)
Gonorrea , Neisseria gonorrhoeae , Sustitución de Aminoácidos , Animales , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Farmacorresistencia Bacteriana/genética , Femenino , Gentamicinas/farmacología , Gentamicinas/uso terapéutico , Gonorrea/tratamiento farmacológico , Ratones , Pruebas de Sensibilidad Microbiana , Factor G de Elongación Peptídica
7.
Sex Transm Dis ; 49(4): 251-256, 2022 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-34772893

RESUMEN

BACKGROUND: Gentamicin has been used for the treatment of gonorrhea in Malawi since 1993. However, declining clinical cure rates have been suspected. We evaluated current Neisseria gonorrhoeae susceptibility to gentamicin in vitro and clinically. METHODS: Men with acute urethritis were recruited at the Bwaila District Hospital STI Clinic in Lilongwe, Malawi, between January 2017 and August 2019. All men provided urethral swabs for etiological testing at enrollment and test of cure (TOC), 1 week later, using Gram-stained microscopy and culture. We used Etest to determine minimum inhibitory concentrations (MICs) of gentamicin, azithromycin, cefixime, ceftriaxone, ciprofloxacin, and spectinomycin; disc diffusion for tetracycline susceptibility; and whole-genome sequencing (WGS) to verify/refute treatment failure. RESULTS: Among 183 N. gonorrhoeae culture-positive men enrolled, 151 (82.5%) had a swab taken for TOC. Of these 151 men, 16 (10.6%) had a positive culture at TOC. One hundred forty-one baseline isolates were tested for gentamicin susceptibility using Etest: 2 (1.4%), MIC = 2 µg/mL; 111 (78.7%), MIC = 4 µg/mL; and 28 (19.9%), MIC = 8 µg/mL. All isolates were susceptible to azithromycin, cefixime, ceftriaxone, and spectinomycin, whereas 63.1% had intermediate susceptibility or resistance to ciprofloxacin. Almost all (96.1%) isolates were resistant to tetracycline. All examined isolates cultured at TOC (n = 13) had gentamicin MICs ≤8 µg/mL. Ten men had pretreatment and posttreatment isolates examined by whole-genome sequencing; 2 (20%) were verified new infections (4119 and 1272 single-nucleotide polymorphisms), whereas 8 (80%) were confirmed treatment failures (0-1 single-nucleotide polymorphism). CONCLUSIONS: Gentamicin MICs poorly predict gonorrhea treatment outcome with gentamicin, and treatment failures are verified with gonococcal strains with in vitro susceptibility to gentamicin. The first-line treatment of gonorrhea in Malawi should be reassessed.


Asunto(s)
Gonorrea , Neisseria gonorrhoeae , Femenino , Humanos , Masculino , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Azitromicina/farmacología , Azitromicina/uso terapéutico , Cefixima/uso terapéutico , Ceftriaxona/farmacología , Ceftriaxona/uso terapéutico , Ciprofloxacina/farmacología , Ciprofloxacina/uso terapéutico , Gentamicinas/farmacología , Gentamicinas/uso terapéutico , Gonorrea/tratamiento farmacológico , Gonorrea/epidemiología , Malaui/epidemiología , Pruebas de Sensibilidad Microbiana , Espectinomicina/farmacología , Espectinomicina/uso terapéutico , Tetraciclina/farmacología , Tetraciclina/uso terapéutico , Resultado del Tratamiento , Polimorfismo de Nucleótido Simple
8.
Clin Infect Dis ; 73(4): e870-e877, 2021 08 16.
Artículo en Inglés | MEDLINE | ID: mdl-34398958

RESUMEN

BACKGROUND: The urine lipoarabinomannan (LAM) antigen test is a tuberculosis (TB) diagnostic test with highest sensitivity in individuals with advanced human immunodeficiency virus (HIV). Its role in TB diagnostic algorithms for HIV-positive outpatients remains unclear. METHODS: The AIDS Clinical Trials Group (ACTG) A5274 trial demonstrated that empiric TB therapy did not improve 24-week survival compared to isoniazid preventive therapy (IPT) in TB screen-negative HIV-positive adults initiating antiretroviral therapy with CD4 counts <50 cells/µL. Retrospective LAM testing was performed on stored urine obtained at baseline. We determined the proportion of LAM-positive participants and conducted modified intent-to-treat analysis excluding LAM-positive participants to determine the effect on 24-week survival, TB incidence, and time to TB using Kaplan-Meier method. RESULTS: A5274 enrolled 850 participants; 53% were male and the median CD4 count was 18 (interquartile range, 9-32) cells/µL. Of the 850, 566 (67%) had LAM testing (283 per arm); 28 (5%) were positive (21 [7%] and 7 [2%] in the empiric and IPT arms, respectively). Of those LAM-positive, 1 participant in each arm died and 5 of 21 and 0 of 7 in empiric and IPT arms, respectively, developed TB. After excluding these 28 cases, there were 19 and 21 deaths in the empiric and IPT arms, respectively (P = .88). TB incidence remained higher (4.6% vs 2%, P = .04) and time to TB remained faster in the empiric arm (P = .04). CONCLUSIONS: Among outpatients with advanced HIV who screened negative for TB by clinical symptoms, microscopy, and Xpert testing, LAM testing identified an additional 5% of individuals with TB. Positive LAM results did not change mortality or TB incidence.


Asunto(s)
Infecciones por VIH , Tuberculosis , Adulto , Pruebas Diagnósticas de Rutina , VIH , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Humanos , Lipopolisacáridos , Masculino , Sistemas de Atención de Punto , Estudios Retrospectivos , Sensibilidad y Especificidad , Tuberculosis/diagnóstico , Tuberculosis/tratamiento farmacológico
9.
Clin Infect Dis ; 73(7): e2000-e2004, 2021 10 05.
Artículo en Inglés | MEDLINE | ID: mdl-33033831

RESUMEN

BACKGROUND: Prior to the widespread availability of antiretroviral therapy (ART), men living with human immunodeficiency virus (HIV) with urethritis had increased concentrations of HIV in semen. This study aims to better evaluate HIV shedding in men with urethritis receiving ART, and its implications for the cure of HIV. METHODS: Men living with HIV with urethritis taking ART ≥12 weeks were enrolled at a sexually transmitted infections clinic in Lilongwe, Malawi. Study follow-up included visits at 1, 2, 4, 8, 12, 24, 36, and 48 weeks after urethritis diagnosis and treatment. Matched blood and semen samples were collected at all visits, and all additional episodes of urethritis were followed with extra visits 1, 2, and 4 weeks after treatment. RESULTS: There were 111 men enrolled in the study between January 2017-March 2019, and 77 (69%) were suppressed in the blood (<400 copies/mL). Among the 77 men, 87 episodes of urethritis were evaluated during follow-up. Of the 87 episodes, 15 episodes (17%) had instances of seminal viral shedding ≥400 copies/mL despite viral suppression in the blood. During nonurethritis follow-up, ≤6% of men at each visit had a viral load ≥400 copies/mL in the semen while maintaining viral suppression in the blood. CONCLUSIONS: An HIV cure requires the elimination of HIV from every body compartment, but available ART does not currently accomplish this. Our study highlights the male genital tract as a local source of HIV that can be reversibly activated. A better understanding of this phenomenon is important to advance the HIV cure field.


Asunto(s)
Infecciones por VIH , VIH-1 , Uretritis , Infecciones por VIH/tratamiento farmacológico , VIH-1/genética , Humanos , Masculino , ARN Viral , Semen , Uretritis/tratamiento farmacológico , Carga Viral , Esparcimiento de Virus
10.
Curr Opin Infect Dis ; 34(1): 50-55, 2021 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-33315750

RESUMEN

PURPOSE OF REVIEW: Evidence of the protective effect of voluntary medical male circumcision (VMMC) against HIV is well established. However, evidence of the protective effect of VMMC against other sexually transmitted infections (STIs) has been inconsistent or scarce across different populations and settings. This review summarizes the current evidence on the effect of VMMC for HIV prevention on acquisition and transmission of other STIs in heterosexual men, women, and men who have sex with men (MSM). RECENT FINDINGS: Recent findings continue to strongly support the protective effect of male medical circumcision against acquisition and transmission of herpes simplex virus type 2 (HSV-2), human papillomavirus (HPV) and syphilis infections in heterosexual men and women, and bacterial vaginosis and trichomoniasis in women. There is emerging evidence on the protective effect of VMMC against acquisition of hepatitis B and Mycoplasma genitalium infections in heterosexual men, and HSV-2, HPV, and syphilis in MSM. SUMMARY: Evidence on the protective effect of VMMC against acquisition and transmission of common STIs is available for heterosexual men and women but more evidence is required for MSM. This review supports policy recommendations for the protective benefits of VMMC against STIs.


Asunto(s)
Circuncisión Masculina , Enfermedades de Transmisión Sexual/prevención & control , Femenino , Infecciones por VIH/prevención & control , Heterosexualidad/psicología , Heterosexualidad/estadística & datos numéricos , Homosexualidad Masculina/psicología , Homosexualidad Masculina/estadística & datos numéricos , Humanos , Masculino , Enfermedades de Transmisión Sexual/psicología , Enfermedades de Transmisión Sexual/transmisión
11.
J Virol ; 94(12)2020 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-32269129

RESUMEN

Concurrent sexually transmitted infections (STI) can increase the probability of HIV-1 transmission primarily by increasing the viral load present in semen. In this study, we explored the relationship of HIV-1 in blood and seminal plasma in the presence and absence of urethritis and after treatment of the concurrent STI. Primer ID deep sequencing of the V1/V3 region of the HIV-1 env gene was done for paired blood and semen samples from antiretroviral therapy (ART)-naive men living in Malawi with (n = 19) and without (n = 5) STI-associated urethritis; for a subset of samples, full-length env genes were generated for sequence analysis and to test entry phenotype. Cytokine concentrations in the blood and semen were also measured, and a reduction in the levels of proinflammatory cytokines was observed following STI treatment. We observed no difference in the prevalence of diverse compartmentalized semen-derived lineages in men with or without STI-associated urethritis, and these viral populations were largely stable during STI treatment. Clonal amplification of one or a few viral sequences accounted for nearly 50% of the viral population, indicating a recent bottleneck followed by limited viral replication. We conclude that the male genital tract is a site where virus can be brought in from the blood, where localized sustained replication can occur, and where specific genotypes can be amplified, perhaps initially by cellular proliferation but further by limited viral replication.IMPORTANCE HIV-1 infection is a sexually transmitted infection that coexists with other STI. Here, we examined the impact of a concurrent STI resulting in urethritis on the HIV-1 population within the male genital tract. We found that viral populations remain largely stable even with treatment of the STI. These results show that viral populations within the male genital tract are defined by factors beyond transient inflammation associated with a concurrent STI.


Asunto(s)
Infecciones por VIH/virología , VIH-1/genética , Semen/virología , Enfermedades de Transmisión Sexual/virología , Uretritis/virología , Productos del Gen env del Virus de la Inmunodeficiencia Humana/genética , Adulto , Secuencia de Bases , Recuento de Linfocito CD4 , Linfocitos T CD4-Positivos/inmunología , Linfocitos T CD4-Positivos/virología , Estudios de Cohortes , Citocinas/genética , Citocinas/inmunología , Infecciones por VIH/epidemiología , Infecciones por VIH/inmunología , Infecciones por VIH/transmisión , VIH-1/clasificación , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Malaui/epidemiología , Masculino , Persona de Mediana Edad , Filogenia , Enfermedades de Transmisión Sexual/epidemiología , Enfermedades de Transmisión Sexual/inmunología , Enfermedades de Transmisión Sexual/transmisión , Uretritis/epidemiología , Replicación Viral , Productos del Gen env del Virus de la Inmunodeficiencia Humana/sangre , Productos del Gen env del Virus de la Inmunodeficiencia Humana/clasificación
12.
Sex Transm Dis ; 48(6): e68-e72, 2021 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-32925596

RESUMEN

ABSTRACT: Monitoring the burden of and trends in sexually transmitted infection syndromes is useful in informing syndromic management guidelines. Among sexually transmitted infection clinic patients in Lilongwe, Malawi, between 2006 and 2015, genital discharge, lower abdominal pain, and genital ulcer syndromes were common. Prevalence of most syndromes remained stable during the 10-year period.


Asunto(s)
Enfermedades de Transmisión Sexual , Humanos , Malaui/epidemiología , Prevalencia , Enfermedades de Transmisión Sexual/epidemiología , Síndrome , Úlcera
13.
Clin Infect Dis ; 71(10): 2645-2654, 2020 12 17.
Artículo en Inglés | MEDLINE | ID: mdl-31761933

RESUMEN

BACKGROUND: People with advanced human immunodeficiency virus (HIV) (CD4 < 50) remain at high risk of tuberculosis (TB) or death despite the initiation of antiretroviral therapy (ART). We aimed to identify immunological profiles that were most predictive of incident TB disease and death. METHODS: The REMEMBER randomized clinical trial enrolled 850 participants with HIV (CD4 < 50 cells/µL) at ART initiation to receive either empiric TB treatment or isoniazid preventive therapy (IPT). A case-cohort study (n = 257) stratified by country and treatment arm was performed. Cases were defined as incident TB or all-cause death within 48 weeks after ART initiation. Using multiplexed immunoassay panels and ELISA, 26 biomarkers were assessed in plasma. RESULTS: In total, 52 (6.1%) of 850 participants developed TB; 47 (5.5%) died (13 of whom had antecedent TB). Biomarkers associated with incident TB overlapped with those associated with death (interleukin [IL]-1ß, IL-6). Biomarker levels declined over time in individuals with incident TB while remaining persistently elevated in those who died. Dividing the cohort into development and validation sets, the final model of 6 biomarkers (CXCL10, IL-1ß, IL-10, sCD14, tumor necrosis factor [TNF]-α, and TNF-ß) achieved a sensitivity of 0.90 (95% confidence interval [CI]: .87-.94) and a specificity of 0.71(95% CI: .68-.75) with an area under the curve (AUC) of 0.81 (95% CI: .78-.83) for incident TB. CONCLUSION: Among people with advanced HIV, a parsimonious inflammatory biomarker signature predicted those at highest risk for developing TB despite initiation of ART and TB preventive therapies. The signature may be a promising stratification tool to select patients who may benefit from increased monitoring and novel interventions. CLINICAL TRIALS REGISTRATION: NCT01380080.


Asunto(s)
Infecciones por VIH , Tuberculosis , Antituberculosos/uso terapéutico , Biomarcadores , Recuento de Linfocito CD4 , Estudios de Cohortes , VIH , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Humanos , Tuberculosis/diagnóstico , Tuberculosis/tratamiento farmacológico , Tuberculosis/epidemiología
14.
J Med Ethics ; 45(6): 388-393, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-31189724

RESUMEN

The increasing use of cluster randomised trials in low-resource settings raises unique ethical issues. The Ottawa Statement on the Ethical Design and Conduct of Cluster Randomised Trials is the first international ethical guidance document specific to cluster trials, but it is unknown if it adequately addresses issues in low-resource settings. In this paper, we seek to identify any gaps in the Ottawa Statement relevant to cluster trials conducted in low-resource settings. Our method is (1) to analyse a prototypical cluster trial conducted in a low-resource setting (PURE Malawi trial) with the Ottawa Statement; (2) to identify ethical issues in the design or conduct of the trial not captured adequately and (3) to make recommendations for issues needing attention in forthcoming revisions to the Ottawa Statement Our analysis identified six ethical aspects of cluster randomised trials in low-resource settings that require further guidance. The forthcoming revision of the Ottawa Statement should provide additional guidance on these issues: (1) streamlining research ethics committee review for collaborating investigators who are affiliated with other institutions; (2) the classification of lay health workers who deliver study interventions as health providers or research participants; (3) the dilemma experienced by investigators when national standards seem to prohibit waivers of consent; (4) the timing of gatekeeper engagement, particularly when researchers face funding constraints; (5) providing ancillary care in health services or implementation trials when a routine care control arm is known to fall below national standards and (6) defining vulnerable participants needing protection in low-resource settings.


Asunto(s)
Países en Desarrollo , Ensayos Clínicos Controlados Aleatorios como Asunto/ética , Fármacos Anti-VIH/uso terapéutico , Comités de Ética en Investigación/ética , Comités de Ética en Investigación/normas , Ética en Investigación , Infecciones por VIH/prevención & control , Infecciones por VIH/transmisión , Recursos en Salud/ética , Humanos , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Consentimiento Informado/ética , Consentimiento Informado/normas , Malaui , Ensayos Clínicos Controlados Aleatorios como Asunto/normas , Proyectos de Investigación/normas , Sujetos de Investigación , Poblaciones Vulnerables
15.
AIDS Care ; 30(8): 954-962, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-29343078

RESUMEN

We evaluated health-related quality of life (QoL) in HIV infection participants with virologic failure (VF) on first-line antiretroviral therapy (ART) in 9 resource-limited settings (RLS). ACTG SF-21 was completed by 512 participants at A5273 study entry; 8 domains assessed: general health perceptions (GHP), physical functioning (PF), role functioning (RF), social functioning (SF), cognitive functioning (CF), pain (P), mental health (MH), and energy/fatigue (E/F); each was scored between 0 (worst) to 100 (best). Mean QoL scores ranged from 67 (GHP) to 91 (PF, SF, CF). QoL varied by country; high VL and low CD4 were associated with worse QoL in most domains, except RF (VL only), SF (CD4 only) and CF (neither). Number of comorbidities, BMI and history of AIDS were associated with some domains. Relationships between QoL and VL varied among countries for all domains. The association of worse disease status with worse QoL may reflect low QoL when ART was initiated and/or deterioration associated with VF.


Asunto(s)
Fármacos Anti-VIH/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/psicología , Calidad de Vida/psicología , Adulto , Femenino , Infecciones por VIH/virología , Humanos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento , Carga Viral
16.
BMC Health Serv Res ; 18(1): 225, 2018 04 02.
Artículo en Inglés | MEDLINE | ID: mdl-29606125

RESUMEN

BACKGROUND: Delivery of quality healthcare in resource-limited settings is an important, understudied public health priority. Thirty-day (early) hospital readmission is often avoidable and an important indicator of healthcare quality. METHODS: We investigated the prevalence of all-cause early readmission and its associated factors using age and sex adjusted risk ratios (RR) and 95% confidence intervals (CI). A retrospective review of the medical ward database at Kamuzu Central Hospital in Lilongwe, Malawi was conducted between February and December 2013. RESULTS: There were 3547 patients with an index admission of which 2776 (74.4%) survived and were eligible for readmission. Among these patients: 49.7% were male, mean age was 39.7 years, 36.1% were HIV-positive, 34.6% were HIV-negative, and 29.3% were HIV-unknown. The prevalence of early hospital readmission was 5.5%. Diagnoses associated with 30-day readmission were HIV-positive status (RR = 2.41; 95% CI: 1.64-3.53) and malaria (RR = 0.45; 95% CI: 0.22-0.91). Other factors associated with readmission were multiple diagnoses (excluding HIV) (RR = 1.52; 95% CI: 1.11-2.06), and prolonged length of stay (≥ 16 days) at the index hospitalization (RR = 3.63; 95% CI: 1.72-7.67). CONCLUSION: Targeting HIV-infected inpatients with multiple diagnoses and longer index hospitalizations may prevent early readmission and improve quality of care.


Asunto(s)
Infecciones por VIH/epidemiología , Readmisión del Paciente/estadística & datos numéricos , Adolescente , Adulto , Distribución por Edad , Anciano , Femenino , Infecciones por VIH/terapia , Hospitalización/estadística & datos numéricos , Hospitales/estadística & datos numéricos , Humanos , Pacientes Internos/estadística & datos numéricos , Malaui/epidemiología , Masculino , Persona de Mediana Edad , Calidad de la Atención de Salud , Estudios Retrospectivos , Factores de Riesgo , Distribución por Sexo , Centros de Atención Terciaria/estadística & datos numéricos , Adulto Joven
17.
PLOS Glob Public Health ; 4(1): e0002648, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38175824

RESUMEN

Tenofovir disoproxil fumarate (TDF), a potent and commonly used antiretroviral drug, is associated with renal tubular dysfunction and renal adverse events. We evaluated the frequency of, time to, and baseline risk factors for discontinuing TDF from initial antiretroviral therapy (ART) regimens because of renal adverse events from presumed tenofovir renal toxicity. We conducted an observational cohort study as a secondary analysis of data from four clinical trials conducted mainly in low- and middle-income countries. We included ART naïve participants living with HIV who started TDF-containing ART regimens in the trials. Participants had to have estimated creatinine clearance (eCrCl) equal to or greater than 60ml/min before starting ART. The primary outcome was the first instance of discontinuing TDF because of renal adverse events attributed to tenofovir renal toxicity during the first 48 weeks after starting ART. We evaluated the cumulative incidence of discontinuing TDF and associated risk factors using Fine and Gray competing risk regression models with a backward elimination variable selection strategy. There were 2802 ART-naïve participants who started TDF-containing ART from the four clinical trials were included in the analysis. Fifty-eight percent were female, the median age was 34 years, and 87% had CD4 cell counts less than 200 cells/µl. Sixty-four participants (2.4%, 95% CI 1.7%-2.8%) discontinued TDF due to renal adverse events. Among the 64 participants, the median time to discontinue TDF was 9.4 weeks (IQR: 3.4-20.7 weeks). From multivariable Fine and Gray regression models, risk factors for discontinuing TDF were older age, CD4 cell count <200 cells/µl, presence and severity of anemia, and eCrCl <90 ml/min. The risk of discontinuing TDF because of renal adverse events was low in participants initiating TDF-containing ART with advanced HIV and normal renal function, attesting to the tolerability of TDF in ART in low- and middle-income countries.

18.
J Int AIDS Soc ; 27 Suppl 1: e26284, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38965987

RESUMEN

INTRODUCTION: Antiretroviral therapy (ART) initiation in infants living with HIV before 12 weeks of age can reduce the risk of mortality by 75%. Point-of-care (POC) diagnostic testing is critical for prompt ART initiation; however, despite its availability, rates of ART initiation are still relatively low before 12 weeks of age. This systematic review describes the barriers to ART initiation in infants before 12 weeks of age, despite the availability of POC. METHODS: This systematic review used a narrative synthesis methodology. We searched PubMed and Scopus using search strategies that combined terms of multiple variants of the keywords "early infant initiation on antiretroviral therapy," "barriers" and "sub-Saharan Africa" (initial search 18th January 2023; final search 1st August 2023). We included qualitative, observational and mixed methods studies that reported the influences of early infant initiation on ART. We excluded studies that reported influences on other components of the Prevention of Mother to Child Transmission cascade. Using a deductive approach guided by the updated Consolidated Framework of Implementation Research, we developed descriptive codes and themes around barriers to early infant initiation on ART. We then developed recommendations for interventions for the identified barriers using the action, actor, target and time framework from the codes. RESULTS: Of the 266 abstracts reviewed, 52 full-text papers were examined, of which 12 papers were included. South Africa had most papers from a single country (n = 3) and the most reported study design was retrospective (n = 6). Delays in ART initiation beyond 12 weeks in infants 0-12 months were primarily associated with health facility and maternal factors. The most prominent barriers identified were inadequate resources for POC testing (including human resources, laboratory facilities and patient follow-up). Maternal-related factors, such as limited male involvement and maternal perceptions of treatment and care, were also influential. DISCUSSION: We identified structural barriers to ART initiation at the health system, social and cultural levels. Improvements in the timely allocation of resources for POC testing operations, coupled with interventions addressing social and behavioural barriers among both mothers and healthcare providers, hold a promise for enhancing timely ART initiation in infants. CONCLUSIONS: This paper identifies barriers and proposes strategies for timely ART initiation in infants.


Asunto(s)
Infecciones por VIH , Pruebas en el Punto de Atención , Humanos , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/diagnóstico , África del Sur del Sahara/epidemiología , Lactante , Antirretrovirales/uso terapéutico , Recién Nacido , Femenino , Fármacos Anti-VIH/uso terapéutico , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Accesibilidad a los Servicios de Salud
19.
medRxiv ; 2024 Apr 04.
Artículo en Inglés | MEDLINE | ID: mdl-38633812

RESUMEN

Introduction: Uptake of voluntary medical male circumcision (VMMC) remains a challenge in many settings. Innovative implementation strategies are required to scale-up VMMC uptake. Methodology: RITe was a multi-faceted intervention comprising transport reimbursement (R), intensified health education (IHE) and SMS/Telephone tracing (Te), which increased the uptake of VMMC among uncircumcised men with sexually transmitted infections (STIs) in Malawi. Using a concurrent exploratory mixed-method approach, we assessed the intervention's acceptability, feasibility and appropriateness among men with STIs and healthcare workers (HCWs) at Bwaila District Hospital. Participants completed Likert scale surveys and participated in-depth interviews (IDIs) and focus group discussions (FGDs). We calculated percentages of responses to survey items and summarized common themes using thematic analysis. Median scores and interquartile ranges (IQR) were calculated for acceptability, feasibility and appropriateness of each strategy at baseline and end-line and compared using the Wilcoxon signed rank test. Results: A total of 300 surveys, 17 IDIs and 4 FGDs were conducted with men and HCWs between baseline and end-line. The mean age for men in the survey was 29 years (SD ±8) and most were married/cohabiting (59.3%). Mean age for HCWs was 38.5 years (SD ±7), and most were female (59.1%). For acceptability, participants agreed that RITe was welcome, approvable, and likable. Despite participants agreeing that RITe was a good idea, culture and religion influenced appropriateness, particularly at baseline, which improved at end-line for Te and R. For feasibility, HCWs agreed that RITe was easy to implement, but expressed concerns that R (end-line median = 4, IQR: 2, 4) and Te (end-line median = 4, IQR: 4, 4), were resource intensive, hence unsustainable. Interviews corroborated the survey results. Participants reported that IHE provided important information, Te was a good reminder and R was attractive, but they reported barriers to R and Te such as electricity, limited access to phones and distrust in the government. Conclusions: The RITe intervention was acceptable, feasible and appropriate. However, culture/religion and structural barriers affected perceptions of appropriateness and feasibility, respectively. Continued awareness raising on VMMC and addressing setting-specific structural factors are required to overcome barriers that impede demand-creation interventions for VMMC. Study registration: ClinicalTrials.gov identifier: NCT04677374. Registered on December 18, 2020.

20.
World J Surg ; 37(9): 2122-8, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23652356

RESUMEN

BACKGROUND: Despite the high prevalence of HIV in adults (11 %) in Malawi, testing among surgical patients is not routine. We examined the feasibility of universal opt-out HIV testing and counseling (HTC) on the surgical wards of Kamuzu Central Hospital in Lilongwe, Malawi, and sought to further delineate the role of HIV in surgical presentation and outcome. METHODS: We reviewed HTC and surgical admission records from May to October 2011 and compared these data to data collected prospectively on patients admitted from November 2011 through April 2012, after universal HTC implementation. RESULTS: Prior to universal HTC, 270 of the 2,606 (10.4 %) surgical admissions were tested; 13 % were HIV-infected. After universal HTC implementation, HTC counselors reviewed 1,961 of the 2,488 admissions (79 %): 310 (16 %) had known status (157 seropositive, 153 seronegative) and 1,651 had unknown status (81 %). Among those with unknown status, 97 % (1,598, of 64 % of all admissions) accepted testing, of whom 9 % were found to be HIV-infected. Patients with longer lengths of stay (LOS) (mean = 11 vs. 5 days, p < 0.01) and those who underwent surgical intervention (odds ratio [OR] 2.5; confidence interval [CI] 2.0-3.1) were more likely to have a known status on discharge. HIV was more prevalence in patients with infection and genital/anal warts or ulcers and lower in trauma patients. HIV-positive patients received less surgical intervention (OR 0.69; CI 0.52-0.90), but there was no association between HIV status and length of stay or mortality. CONCLUSIONS: Universal opt-out HTC on the surgical wards was well accepted and increased the proportion of patients tested. High HIV prevalence in this setting merits implementation of universal HTC.


Asunto(s)
Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Exámenes Obligatorios/normas , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Comorbilidad , Consejo , Femenino , Humanos , Malaui/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Estudios Retrospectivos , Procedimientos Quirúrgicos Operativos/estadística & datos numéricos , Adulto Joven
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