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1.
BMC Infect Dis ; 24(1): 1134, 2024 Oct 10.
Article in English | MEDLINE | ID: mdl-39390378

ABSTRACT

Regional variations exist in the implementation of Syphilis Mother-to-Child Transmission Prevention (PMTCT). Thus, it is crucial to assess the effectiveness of this model in the Ningxia region and explore the supplementary role of Health Management Teams (HMT). This study established the PMTCT + HMT model and examined its impact on adverse outcomes in pregnant women with syphilis infection. The majority of participants were urban residents, married, had a minimum high school education, and held public positions; 36.7% and 26.7% were from minority ethnic groups. The PMTCT + HMT model enhanced participants' knowledge, rates of voluntary counseling, and testing. The incidence of adverse pregnancy outcomes (miscarriages, preterm births, stillbirths) significantly decreased, and adverse neonatal outcomes (low birth weight, neonatal mortality, congenital syphilis) were notably reduced. Simultaneously, we identified factors associated with adverse outcomes, including non-residency, unmarried status, lower educational attainment, minority ethnicity, primary syphilis, and positive titers. Thus, HMT may be an effective intervention to enhance the effect of PMTCT for syphilis. The unique population structure in Ningxia is closely linked to adverse outcomes, highlighting the significance of providing equitable treatment for vulnerable populations.


Subject(s)
Infectious Disease Transmission, Vertical , Pregnancy Complications, Infectious , Pregnancy Outcome , Syphilis , Humans , Female , Pregnancy , China/epidemiology , Syphilis/transmission , Syphilis/epidemiology , Syphilis/prevention & control , Infectious Disease Transmission, Vertical/prevention & control , Adult , Pregnancy Complications, Infectious/prevention & control , Young Adult , Infant, Newborn , Syphilis, Congenital/prevention & control , Syphilis, Congenital/transmission , Syphilis, Congenital/epidemiology
2.
AIDS Res Ther ; 21(1): 70, 2024 Oct 10.
Article in English | MEDLINE | ID: mdl-39390523

ABSTRACT

The uptake of early infant HIV diagnosis services is crucial for preventing mother to child transmission of virus, and timely management. However, the uptake of the services remains a global challenge, despite major advances in HIV testing. This study investigated the uptake of early infant HIV diagnosis and its associated factors among mothersof exposed infants. The results showed that the uptake of early infant HIV diagnosis was 76%. Factors associated with the uptake are caregivers being married, have higher income level and having adequate knowledge on early infant HIV diagnosis.


Subject(s)
Early Diagnosis , HIV Infections , Infectious Disease Transmission, Vertical , Humans , HIV Infections/diagnosis , HIV Infections/epidemiology , Cross-Sectional Studies , Tanzania/epidemiology , Female , Infectious Disease Transmission, Vertical/prevention & control , Infant , Adult , Male , Infant, Newborn , Young Adult , Mothers , Health Knowledge, Attitudes, Practice
3.
An Pediatr (Engl Ed) ; 2024 Oct 11.
Article in English | MEDLINE | ID: mdl-39395855

ABSTRACT

INTRODUCTION: The vertical transmission rate (VTR) of HIV has decreased to less than 2% in high-income countries, in spite of which perinatal infections continue to occur. We present data from the national cohort of pregnant women living with HIV and their children in Spain. The objectives were to describe the characteristics of this population, evaluate the VTR of HIV, the safety of antiretroviral therapy (ART) and the prevalence of coinfection. PATIENTS AND METHODS: Multicentre prospective, observational and descriptive study with participation of 62 hospitals. The sample included pegnant women living with HIV whose children were born between January 2020 and December 2022. We collected prospective data on the characteristics of mothers and children using an online questionnaire (REDCap web application). RESULTS: The study included 414 mother-child dyads. Most mothers were immigrants (227/349; 65.1%). The main route of HIV infection was heterosexual transmission (160/402; 39.8%), followed by vertical transmission (44/402; 10.9%). The diagnosis was made before conception in 313/389 women (80.4%), 394/402 (98%) received ART during pregnancy and 356/402 (89.3%) had an undetectable viral load at the time of delivery. The delivery was vaginal in 230/388 children (59.3%). The proportion of preterm birth was 11.1%. The most frequent neonatal prophylaxis approach was monotherapy with zidovudine (358/414; 86.5%). There were 3 cases of vertical transmission of HIV (95% CI, 0%-1.54%). Only one newborn was breastfed. CONCLUSIONS: At present, most women living with HIV in Spain receive the diagnosis before conception, are of foreign ancestry and achieve good control of the infection. Although the VTR is very low in Spain, there are still infections that could be prevented with early diagnosis and treatment.

4.
MAbs ; 16(1): 2406788, 2024.
Article in English | MEDLINE | ID: mdl-39324549

ABSTRACT

Prenatal administration of monoclonal antibodies (mAbs) is a strategy that could be exploited to prevent viral infections during pregnancy and early life. To reach protective levels in fetuses, mAbs must be transported across the placenta, a selective barrier that actively and specifically promotes the transfer of antibodies (Abs) into the fetus through the neonatal Fc receptor (FcRn). Because FcRn also regulates Ab half-life, Fc mutations like the M428L/N434S, commonly known as LS mutations, and others have been developed to enhance binding affinity to FcRn and improve drug pharmacokinetics. We hypothesized that these FcRn-enhancing mutations could similarly affect the delivery of therapeutic Abs to the fetus. To test this hypothesis, we measured the transplacental transfer of leronlimab, an anti-CCR5 mAb, in clinical development for preventing HIV infections, using pregnant rhesus macaques to model in utero mAb transfer. We also generated a stabilized and FcRn-enhanced form of leronlimab, termed leronlimab-PLS. Leronlimab-PLS maintained higher levels within the maternal compartment while also reaching higher mAb levels in the fetus and newborn circulation. Further, a single dose of leronlimab-PLS led to complete CCR5 receptor occupancy in mothers and newborns for almost a month after birth. These findings support the optimization of FcRn interactions in mAb therapies designed for administration during pregnancy.


Subject(s)
Fetus , Histocompatibility Antigens Class I , Macaca mulatta , Receptors, CCR5 , Receptors, Fc , Animals , Pregnancy , Receptors, Fc/genetics , Receptors, Fc/immunology , Receptors, Fc/metabolism , Female , Histocompatibility Antigens Class I/genetics , Histocompatibility Antigens Class I/immunology , Fetus/immunology , Receptors, CCR5/genetics , Receptors, CCR5/immunology , Animals, Newborn , Humans , Antibodies, Monoclonal/immunology , Antibodies, Monoclonal/genetics , HIV Infections/immunology , HIV Infections/drug therapy , HIV Infections/genetics , Maternal-Fetal Exchange/immunology , Mutation , HIV Antibodies/immunology , HIV Antibodies/genetics , CCR5 Receptor Antagonists/pharmacology , Antibodies, Monoclonal, Humanized/immunology
5.
Heliyon ; 10(17): e37097, 2024 Sep 15.
Article in English | MEDLINE | ID: mdl-39281486

ABSTRACT

Background: The prevalence of chronic hepatitis B virus (HBV) poses a significant threat to the lives of 257 million individuals globally, potentially resulting in severe outcomes such as liver cirrhosis or hepatocellular carcinoma. Among the existing preventive measures, yeast-derived vaccines have proven to be the most efficacious approach in combatting hepatitis B. Nonetheless, as scientific inquiries focus more on occult HBV infection (OBI) in vaccinated persons and the lingering risk of vertical transmission affecting 10-30 % of babies born to HBsAg-positive mothers, there is a growing apprehension regarding the inability of HBV vaccines to ensure complete immunity. This study aims to offer a more comprehensive understanding of the implications of widespread HBV vaccination initiatives on OBI while tackling the primary limitations associated with current vaccine formulations. Methods: The exploration was conducted on PubMed, Scopus, and Web of Science databases to pinpoint research on OBI within vaccinated cohorts. A sum of 76 suitable studies was recognized. Discussion: Multiple studies have documented the occurrence of OBI in fully vaccinated individuals, including both the general population and high-risk groups, such as newborns born to HBsAg-positive mothers. Factors contributing to vaccine failures include low-level anti-HBs antibodies, high maternal viral loads in mother-to-child transmission cases, as well as the presence of vaccine escape mutants and heterologous HBV genotypes. However, further research is needed to precisely understand the impact of active immunization on the emergence of OBI in vaccinated populations. Nonetheless, it is apparent that the advancement of more effective HBV vaccines could potentially lead to the extinction of HBV.

6.
Int J STD AIDS ; : 9564624241284078, 2024 Sep 19.
Article in English | MEDLINE | ID: mdl-39295577

ABSTRACT

BACKGROUND: Female sex workers (FSWs) face a significant and persistent risk of contracting HIV. While evidence indicates high rates of pregnancy among FSWs in sub-Saharan Africa, studies on the coverage of HIV testing during pregnancy among them are sparse. The objective of this study was to estimate the prevalence of prenatal HIV testing and determine the associated factors among FSWs in Nigeria. METHODS: This study was a secondary data analysis of the 2020 Integrated Biological & Behavioural Surveillance Survey (IBBSS) among key populations in Nigeria. We performed weighted descriptive statistics and multivariable binary logistic regression to assess the associations between prenatal HIV testing and sociodemographic characteristics, risk behaviours, HIV knowledge and risk awareness, stigma, and access to healthcare. RESULTS: Of the 1598 FSWs included in the study, 71.0% (95%CI = 68.7%-73.1%) had HIV testing during their last pregnancy. In the regression model, tertiary education (aOR = 2.98, 95%CI = 1.48-6.01), consistent condom use (aOR = 1.95, 95%CI = 1.39-2.75), and receipt of antenatal care (aOR = 35.52, 95%CI = 23.40-53.92) were associated with higher odds of prenatal HIV testing. Compared with the South South geopolitical zone, FSW residing in South East (aOR = 3.38, 95%CI = 1.80-6.35), South West (aOR = 2.97, 95%CI = 1.88-4.68), North Central (aOR = 4.43, 95%CI = 2.80-7.01), North East (aOR = 4.22, 95%CI = 1.64-10.34), North West (aOR = 4.40, 95%CI = 2.59-7.48) had higher odds of reporting prenatal HIV testing. However, being a non-brothel-based FSW (aOR = 0.66, 95%CI = 0.47-0.92), and engaging in sex work during pregnancy (aOR = 0.45, 95%CI = 0.31-0.66) were significantly associated with lower odds of prenatal HIV testing. CONCLUSIONS: The prenatal HIV testing among FSWs in this study was suboptimal. The results highlight the need to improve access to antenatal care and implement regional and typology-specific interventions to bridge the gap in prenatal HIV testing among FSWs.

7.
JMIR Public Health Surveill ; 10: e60021, 2024 Sep 04.
Article in English | MEDLINE | ID: mdl-39230944

ABSTRACT

BACKGROUND: Hepatitis B poses a significant global public health challenge, with mother-to-child transmission (MTCT) being the primary method of hepatitis B virus (HBV) transmission. The prevalence of HBV infection in China is the highest in Asia, and it carries the greatest burden globally. OBJECTIVE: This study aims to critically evaluate the existing local strategies for preventing MTCT and the proposed potential enhancements by analyzing the prevalence of hepatitis B among pregnant women and their neonates in Yinchuan. METHODS: From January 2017 to December 2021, 37,557 prenatal screening records were collected. Among them, 947 pregnant women who tested positive for hepatitis B surface antigen (HBsAg) near delivery and their 960 neonates were included in an HBV-exposed group, while 29 pregnant women who tested negative and their 30 neonates were included in an HBV-nonexposed group. HBV markers in maternal peripheral blood and neonatal cord blood were analyzed using the least absolute shrinkage and selection operator (LASSO) regression, logistic regression, chi-square test, t-test, and U-test. Additionally, to further evaluate the diagnostic value of HBsAg positivity in cord blood, we conducted an additional follow-up study on 103 infants who tested positive for HBsAg in their cord blood. RESULTS: The prevalence of HBV among pregnant women was 2.5% (947/37,557), with a declining trend every year (χ²4=19.7; P=.001). From 2018 to 2020, only 33.0% (35/106) of eligible pregnant women received antiviral medication treatment. Using LASSO regression to screen risk factors correlated with HBsAg positivity in cord blood (when log [λ] reached a minimum value of -5.02), 5 variables with nonzero coefficients were selected, including maternal hepatitis B e-antigen (HBeAg) status, maternal hepatitis B core antibody (HBcAb) status, maternal HBV DNA load, delivery method, and neonatal birth weight. Through univariate and multivariate logistic regression, delivery by cesarean section (adjusted odds ratio [aOR] 0.52, 95% CI 0.31-0.87), maternal HBeAg positivity (aOR 2.05, 95% CI 1.27-3.33), low maternal viral load (aOR 2.69, 95% CI 1.33-5.46), and high maternal viral load (aOR 2.69, 95% CI 1.32-5.51) were found to be strongly associated with cord blood HBsAg positivity. In the additional follow-up study, 61 infants successfully completed the follow-up, and only 2 were found to be infected with HBV. The mothers of both these infants had detectable HBV DNA levels and should have received standard antiviral therapy. The results of the hepatitis B surface antibody (HBsAb) positivity rate and titer test indicated a gradual decline in the immunity of vaccinated infants as the interval after vaccination increased. CONCLUSIONS: The clinical relevance of HBV marker detection in cord blood is restricted within the current prevention measures for MTCT. There is an emphasis on the significance of public education regarding hepatitis B and the reinforcement of postnatal follow-up for the prevention of MTCT.


Subject(s)
Hepatitis B , Infectious Disease Transmission, Vertical , Humans , Infectious Disease Transmission, Vertical/statistics & numerical data , Infectious Disease Transmission, Vertical/prevention & control , Female , China/epidemiology , Pregnancy , Cross-Sectional Studies , Hepatitis B/epidemiology , Hepatitis B/transmission , Adult , Infant, Newborn , Prevalence , Pregnancy Complications, Infectious/epidemiology , Pregnancy Complications, Infectious/drug therapy , Hepatitis B Surface Antigens/blood
8.
BMC Pediatr ; 24(1): 597, 2024 Sep 20.
Article in English | MEDLINE | ID: mdl-39304894

ABSTRACT

BACKGROUND: The principal route of HIV infection in children is vertical transmission. Thus, this study aimed to assess the incidence of mother-to-child transmission of HIV and predictors of positivity among HIV-exposed infants. METHOD: Institutions-based retrospective follow-up study was conducted in South Gondar Public hospitals, Northwest Ethiopia from December 2019 to November 2021. The data were taken from PMTCT logbooks and patient medical records, with death being the competing event. Data were entered in to Epi info version 7 and exported to STATA version 14 for final analysis. Both bivariable and multiple variable proportional subdistribution hazard analysis were conducted to identify predictors. P-value < 0.05 was level of significance. RESULT: A total of 469 exposed infant mother pairs records were included. The cumulative incidence rate at the end of the study period was 5.2 per 1000 person months (5.2; 95% CI: 3.4-8.0).Infants' absence of ARV prophylaxis at birth (aSHR = 3.7; 95% CI: 1.33-10.48), Mothers with no PMTCT intervention (aSHR = 5.1; 95% CI: 1.83-14.03), home delivery (aSHR = 4.1; 95%CI: 1.46-11.63) and maternal disclosure of HIV status to partner/families (aSHR = 2.9; 95% CI: 1.06-7.78) were predictors of HIV positivity. CONCLUSION: The study found that Infants' absence of ARV prophylaxis at birth, mothers without PMTCT intervention, home delivery and mothers who were not disclosing their HIV status to families were predictors of HIV positivity.


Subject(s)
HIV Infections , Hospitals, Public , Infectious Disease Transmission, Vertical , Humans , Infectious Disease Transmission, Vertical/statistics & numerical data , Infectious Disease Transmission, Vertical/prevention & control , Ethiopia/epidemiology , Female , HIV Infections/transmission , HIV Infections/epidemiology , HIV Infections/diagnosis , Incidence , Retrospective Studies , Infant, Newborn , Infant , Adult , Pregnancy , Male , Follow-Up Studies , Pregnancy Complications, Infectious/epidemiology , Risk Factors , Young Adult
9.
BMC Infect Dis ; 24(1): 957, 2024 Sep 11.
Article in English | MEDLINE | ID: mdl-39261777

ABSTRACT

PURPOSE: This study aims to analyze whether undergoing amniocentesis during pregnancy in women diagnosed with hepatitis B virus (HBV) infection leads to HBV transmission to newborns. METHODS: Retrospective data collection was conducted from June 2019 to November 2022 on expectant mothers positive for hepatitis B surface antigen (HBsAg) who underwent amniocentesis at The Third Affiliated Hospital of Sun Yat-sen University, along with data on their newborns. The study summarized the HBV infection status of newborns born to mothers with different expressions of hepatitis B e antigen (HBeAg), antiviral treatment versus no treatment, and different HBV DNA viral loads before delivery. RESULTS: In this study, 346 expectant mothers tested positive for HBsAg, along with 351 newborns (including 5 sets of twins, with 8 infants (2.28%) testing HBsAg-positive at birth. All newborns received dual immunotherapy and were followed up. At 7-12 months, retesting for HBsAg positivity and HBV DNA positivity among infants revealed that out of the infants born with HBsAg positivity, 7 cases had seroconverted to negative, while the remaining infant, who was positive for both HBsAg and HBeAg at birth, tested positive for both HBsAg and HBV DNA at 7-12 months. Thus, one case of vertical transmission of hepatitis B from mother to child occurred in this study. The proportion of infants born with HBsAg + among newborns born to HBeAg-positive mothers (4 cases, 6.06%) was significantly higher than that among newborns born to HBeAg-negative mothers (4 cases, 1.41%) (P < 0.05). The proportion of infants born with HBsAg + showed no significant difference between newborns born to mothers receiving antiviral therapy (2 cases, 2.90%) and those born to mothers not receiving antiviral therapy (6 cases, 2.13%) (P > 0.05). Among expectant mothers with viral load ≥ 6 log 10 IU/mL before delivery, 3 newborns (30.00%) were manifesting HBsAg positivity at birth, significantly higher than the group with viral load < 6 log 10 IU/mL before delivery (5 cases, 1.47%) (P < 0.05). CONCLUSION: Among HBsAg-positive expectant mothers, only a small number of infants are infected with the hepatitis B virus at birth, the proportion of which is relatively low. Infants born to mothers who are HBeAg-positive or have a viral load ≥ 6 log10 IU/mL have a higher risk of being born positive.


Subject(s)
Amniocentesis , DNA, Viral , Hepatitis B Surface Antigens , Hepatitis B e Antigens , Hepatitis B virus , Hepatitis B , Infectious Disease Transmission, Vertical , Pregnancy Complications, Infectious , Viral Load , Humans , Female , Pregnancy , Retrospective Studies , Infant, Newborn , Hepatitis B/transmission , Adult , Hepatitis B Surface Antigens/blood , Pregnancy Complications, Infectious/virology , Pregnancy Complications, Infectious/drug therapy , Hepatitis B virus/genetics , Hepatitis B virus/isolation & purification , DNA, Viral/blood , Hepatitis B e Antigens/blood , Antiviral Agents/therapeutic use , Male , Mothers , Young Adult
10.
Article in English | MEDLINE | ID: mdl-39291772

ABSTRACT

CRF01_AE and CRF07_BC are predominant circulating HIV-1 subtypes in China. In this study, we report two novel HIV-1 CRF01_AE/CRF07_BC recombinant forms isolated from one man who has sex with men (MSM) (BDD027) and one mother-to-child transmission (MTCT) case (BDL123) in Baoding City, Hebei Province, China. The recombination breakpoint analysis showed that the recombination pattern of the near-full-length genome of BDD027 consisted of two CRF07_BC fragments inserted into a CRF01_AE backbone, while the recombination pattern of the near-full-length genome of BDL123 consisted of one CRF01_AE fragment inserted into a CRF07_BC backbone. This study demonstrates the importance of strengthening the monitoring of HIV-1 molecular epidemiological characteristics and emphasizes the urgent need to reduce the HIV-1 epidemic among MSM and MTCT populations in China.

11.
Eur J Clin Pharmacol ; 2024 Sep 11.
Article in English | MEDLINE | ID: mdl-39259357

ABSTRACT

PURPOSE: At Lille University Hospital, a pregnancy heart team including cardiologists, obstetricians, pediatricians, anesthetists, geneticists, and pharmacologists discusses about treatment compatibility taken during breastfeeding in pregnant women (or those wishing to be pregnant) with complex cardiovascular pathologies. Beta-blockers are among the drug most often used in these patients, and data are missing or suggest a risk to the breastfed child. The aim of this study was to evaluate the proportion of women treated with beta-blockers, identified during the multidisciplinary meeting, who breastfed and to monitor adverse effects (AEs) in newborns. METHODS: A prospective descriptive study was conducted from 1 December 2017 to 1 December 2021. All pregnant patients followed up by the pregnancy heart team in Lille University Hospital, treated with beta-blockers and who gave birth, were contacted as part of the pharmacovigilance follow-up. RESULTS: The proportion of women treated with beta-blockers intending to breastfeed was 69.8%. Among the 53 women interviewed, 49% did not breastfeed, including 10 because of the theoretical incompatibility of their beta-blocker with breastfeeding. Among the 27 women who breastfed, 30% breastfed while treated with a theoretically incompatible beta-blocker; 56% was changed from their initial beta-blocker to allow safe breastfeeding. No serious AE was observed. CONCLUSION: To our knowledge, our study is the largest series of patients treated with beta-blockers during breastfeeding. Taking a treatment can be an obstacle to breastfeeding, but for the particular case of beta-blockers, even if the available data are few and sometimes worrying, the data from this study are reassuring.

12.
Article in English | MEDLINE | ID: mdl-39171788

ABSTRACT

BACKGROUND: Despite rising hepatitis C virus (HCV) prevalence among pregnant individuals in the United States, HCV testing among exposed infants remains low. Although recent guidelines recommend early RNA testing for HCV-exposed children to help improve testing rates, national studies describing factors associated with HCV testing and type of testing completed are lacking. METHODS: In this retrospective national study, we characterized HCV testing and care among HCV-exposed infants born 2010-2020 captured in the electronic health record-based TriNetX Research Network. We analyzed factors associated with appropriate HCV testing completion (negative or positive HCV RNA testing or negative HCV antibody testing at any age through study end in 2022) and with RNA compared with antibody testing, using univariable and multivariable logistic regression with clustered standard errors by healthcare organization. RESULTS: Of 8,516 HCV-exposed children, 45.8% completed any HCV testing and 42.1% completed appropriate testing (25% of whom had RNA testing only). 182 (5.1% of appropriately tested children) had evidence of HCV infection. Of 104 treatment-eligible children, 14.4% were treated. Black (OR 0.38, 95% CI 0.26-0.55), Asian/Pacific Islander (OR 0.06, 95% CI 0.03-0.11), and Hispanic/Latinx children (OR 0.56, 95% CI 0.36-0.88) had lower odds of appropriate testing compared with White and non-Hispanic/Latinx children, respectively. CONCLUSIONS: Fewer than half of HCV-exposed children in this national sample were tested for HCV, with lower testing odds among Black, Asian/Pacific Islander, and Hispanic/Latinx children. Substantial work to increase testing and treatment and decrease disparities in testing among HCV-exposed children is needed to help reach US HCV elimination goals.

13.
BMC Public Health ; 24(1): 2130, 2024 Aug 06.
Article in English | MEDLINE | ID: mdl-39107773

ABSTRACT

BACKGROUND: The World Health Organization (WHO) recommends that women with HIV breastfeed for a minimum of one year. In contrast, across high-income countries, HIV and infant-feeding guidelines recommend exclusive formula feeding if parents want to avoid all risk of postpartum transmission. However, recently these guidelines (including in the United Kingdom (UK)) increasingly state that individuals with HIV should be supported to breast/chest feed if they meet certain criteria; such as an undetectable maternal HIV viral load and consent to additional clinical monitoring. Between 600 and 800 pregnancies are reported annually in women with HIV in the UK, with low rates of vertical transmission (0.22%). Informed infant-feeding decision-making requires clinical support. Currently, little research addresses how individuals with HIV in high-income countries navigate infant-feeding decisions with their clinical teams and familial and social networks, and the resources needed to reach an informed decision. METHODS: Semi-structured remote interviews were conducted between April 2021 - January 2022 with UK-based individuals with a confirmed HIV diagnosis who were pregnant or one-year postpartum. Using purposive sampling, pregnant and postpartum participants were recruited through NHS HIV clinics, community-based organisations and snowballing. Data were analysed thematically and organised using NVivo 12. RESULTS: Of the 36 cisgender women interviewed, 28 were postpartum. The majority were of Black African descent (n = 22) and born outside the UK. The majority of postpartum women had chosen to formula feed. Women's decision-making regarding infant-feeding was determined by (1) information and support; (2) practicalities of implementing medical guidance; (3) social implications of infant-feeding decisions. CONCLUSION: The evolution of UK HIV and infant-feeding guidelines are not reflected in the experiences of women living with HIV. Clinicians' emphasis on reducing the risk of vertical transmission, without adequately considering personal, social and financial concerns, prevents women from making fully informed infant-feeding decisions. For some, seeking advice beyond their immediate clinical team was key to feeling empowered in their decision. The significant informational and support need among women with HIV around their infant-feeding options must be addressed. Furthermore, training for and communication by healthcare professionals supporting women with HIV is essential if women are to make fully informed decisions.


Subject(s)
Breast Feeding , Decision Making , HIV Infections , Infectious Disease Transmission, Vertical , Qualitative Research , Humans , Infectious Disease Transmission, Vertical/prevention & control , Female , HIV Infections/transmission , HIV Infections/prevention & control , HIV Infections/psychology , United Kingdom , Breast Feeding/psychology , Breast Feeding/statistics & numerical data , Adult , Infant , Pregnancy , Infant, Newborn , Interviews as Topic , Young Adult
14.
AIDS Care ; : 1-12, 2024 Aug 06.
Article in English | MEDLINE | ID: mdl-39106970

ABSTRACT

ABSTRACTAdherence to antiretroviral therapy (ART) remains sub-optimal among pregnant and postpartum women with HIV (PPWH) in high HIV prevalence low resource settings with few effective behavioral interventions. A large body of qualitative literature has established general barriers and facilitators to ART adherence in PPWH at various levels (individual, interpersonal, structural). However, research exploring the underlying behavioral mechanisms of ART adherence in PPWH with objectively verified adherence biomarkers is extremely limited. We conducted 24 in-depth interviews with postpartum women in western Kenya who had linked ART drug concentrations obtained from three dried blood spot samples across the peripartum period. Among PPWH with a low drug concentration (n = 13) compared to those with continuously high drug concentrations (n = 11), distinct themes emerged related to HIV status disclosure, social support, interactions with the health system, and health beliefs. By combining ART biomarkers with patient reported challenges, there is the potential for real-time interventions to support sustained ART adherence among PPWH and improve maternal and infant health outcomes.

15.
Viruses ; 16(7)2024 Jul 09.
Article in English | MEDLINE | ID: mdl-39066265

ABSTRACT

Although a combination of immunoprophylaxis and antiviral therapy can effectively prevent mother-to-child transmission (MTCT) of hepatitis B virus (HBV), a considerable number of infants born to highly viremic mothers still develop occult HBV infection (OBI). To uncover the virological factor and risk predictor for OBI in infants, we found that the diversity and complexity of maternal HBV quasispecies in the case group were lower than those in the control group. Mutations with significant differences between the two groups were most enriched in the NTCPbd and PreC regions. Genetic distance at the amino-acid level of the PreC region, especially the combination of three amino-acid mutations in the PreC region, could strongly predict the risk of OBI in infants. HBV quasispecies in OBI infants were highly complex, and the non-synonymous substitutions were mainly found in the RT and HBsAg regions. The sK47E (rtQ55R) and sP49L mutations in OBI infants might contribute to OBI through inhibiting the production of HBV DNA and HBsAg, respectively. This study found the potential virological factors and risk predictors for OBI in infants born to highly viremic mothers, which might be helpful for controlling OBI in infants.


Subject(s)
DNA, Viral , Hepatitis B virus , Hepatitis B , Infectious Disease Transmission, Vertical , Mutation , Quasispecies , Viremia , Humans , Hepatitis B virus/genetics , Hepatitis B virus/classification , Hepatitis B virus/isolation & purification , Female , Quasispecies/genetics , Hepatitis B/virology , Hepatitis B/transmission , DNA, Viral/genetics , Infant , Pregnancy , Adult , Hepatitis B Surface Antigens/genetics , Hepatitis B Surface Antigens/blood , Infant, Newborn , Pregnancy Complications, Infectious/virology , Male , Mothers , Genotype
16.
World J Virol ; 13(2): 92115, 2024 Jun 25.
Article in English | MEDLINE | ID: mdl-38984086

ABSTRACT

BACKGROUND: Birth-dose (Hep-BD) followed by three additional doses (Hep-B3) of hepatitis B virus (HBV) vaccine are key to eliminating HBV by 2030. Unfortunately, Hep-BD and Hep-B3 coverage in our country is poor. AIM: To studied the parent's knowledge and awareness about HBV infection, its prevention, consequences and vaccination. METHODS: Parents of 6 months to 8 years old children were interviewed to assess their knowledge & awareness about hepatitis B, its transmission, prevention, illness caused by this, and vaccination. Eighteen close-ended questions were administered, and responses were recorded as 'yes', 'no', or 'not sure'. HBV knowledge score was calculated based on the sum of correct answers. Each correct response scored one point and incorrect, missing or 'not sure' responses received no points. Categorical data are presented as number (%) and numerical data are expressed as median. Data were compared using Chi2 tests and level of significance was kept as P < 0.05. RESULTS: Parents (58.3% mothers) of 384 children (89.9% age < 5 years; 82% age-appropriately vaccinated) were included. Three hundred and twenty-two (83.9%) children were Hep-B3 vaccinated. 94.3%, 87.5%, and 29.2% parents knew about polio, tetanus, and hepatitis B vaccine. Overall, 41.2%, 15.8%, and 23% parents knew about hepatitis B transmission, consequences of infection, and prevention respectively. Only 7.6% parents knew about three-dose schedule of hepatitis B vaccination. Only 23% parents believed that vaccine could prevent HBV, 15.7% knew that HBV affects liver. Parents of Hep-B3 vaccinated children were significantly more aware about HBV than the parents of unvaccinated children (P < 0.05 for 17/18 questions). CONCLUSION: The knowledge and awareness among the parents about hepatitis B is poor. The Increasing knowledge/awareness about HBV among parents may improve Hep-B3 vaccination coverage.

17.
Curationis ; 47(1): e1-e9, 2024 Jun 28.
Article in English | MEDLINE | ID: mdl-38949424

ABSTRACT

BACKGROUND:  HIV-positive and pregnancy diagnosis is a traumatic, shocking, and distressing experience for women. Adoption of routine HIV counselling and testing in the antenatal programme aimed to increase the uptake and the early diagnosis of HIV among pregnant women to prevent maternal HIV transmission to unborn babies and neonates. OBJECTIVES:  The study aimed to explore the psychological reaction of women coincidentally discovering their HIV-positive status and pregnancy while seeking medical care in primary healthcare facilities in the Tshwane district. METHOD:  Descriptive phenomenology involving a semi-structured in-depth interview was used to collect data. The sample was purposively selected. Twenty-eight women participated in the research project. Face-to-face in-depth audio recorded interviews were used to gain a full understanding of the experiences and feelings of the participants. RESULTS:  Reason for the uptake of pregnancy and HIV testing, reactions upon discovering HIV and pregnancy-positive status, emotions arising from the pregnancy and HIV-positive diagnosis, understanding HIV infection in pregnancy, and transitions to acceptance and coping with the HIV-positive diagnosis were themes that emerged from this study. CONCLUSION:  It is crucial that responsible healthcare workers consider this psychological imbalance during their offering of antenatal and postnatal care services so that the pregnant women living with HIV can accept and cope with the situation.Contribution: This study accounts to support other studies that offer intense counselling for women coincidentally discovering their positive HIV status and pregnancy. It is important to remedy the acceptance of the situation and to promote HIV prevention and family planning for women of childbearing age.


Subject(s)
HIV Infections , Pregnancy Complications, Infectious , Primary Health Care , Qualitative Research , Humans , Female , Pregnancy , Adult , HIV Infections/psychology , Primary Health Care/statistics & numerical data , Pregnancy Complications, Infectious/psychology , South Africa , Interviews as Topic/methods , Infectious Disease Transmission, Vertical/prevention & control , Pregnant Women/psychology
18.
JHEP Rep ; 6(8): 101064, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39035070

ABSTRACT

Background & Aims: In 2020, the World Health Organization (WHO) recommended peripartum antiviral prophylaxis (PAP) for pregnant women infected with hepatitis B virus (HBV) with high viremia (≥200,000 IU/ml). Hepatitis B e antigen (HBeAg) was also recommended as an alternative when HBV DNA is unavailable. To inform policymaking and guide the implementation of prevention of mother-to-child transmission strategies, we conducted a systematic review and meta-analysis to estimate the proportion of HBV-infected pregnant women eligible for PAP at global and regional levels. Methods: We searched PubMed, EMBASE, Scopus, and CENTRAL for studies involving HBV-infected pregnant women. We extracted proportions of women with high viremia (≥200,000 IU/ml), proportions of women with positive HBeAg, proportions of women cross-stratified based on HBV DNA and HBeAg, and the risk of child infection in these maternal groups. Proportions were pooled using random-effects meta-analysis. Results: Of 6,999 articles, 131 studies involving 71,712 HBV-infected pregnant women were included. The number of studies per WHO region was 66 (Western Pacific), 21 (Europe), 17 (Africa), 11 (Americas), nine (Eastern Mediterranean), and seven (South-East Asia). The overall pooled proportion of high viremia was 21.27% (95% CI 17.77-25.26%), with significant regional variation: Western Pacific (31.56%), Americas (23.06%), Southeast Asia (15.62%), Africa (12.45%), Europe (9.98%), and Eastern Mediterranean (7.81%). HBeAg positivity showed similar regional variation. After cross-stratification, the proportions of high viremia and positive HBeAg, high viremia and negative HBeAg, low viremia and positive HBeAg, and low viremia and negative HBeAg were 15.24% (95% CI 11.12-20.53%), 2.70% (95% CI 1.88-3.86%), 3.69% (95% CI 2.86-4.75%), and 75.59% (95% CI 69.15-81.05%), respectively. The corresponding risks of child infection following birth dose vaccination without immune globulin and PAP were 14.86% (95% CI 8.43-24.88%), 6.94% (95% CI 2.92-15.62%), 7.14% (95% CI 1.00-37.03%), and 0.14% (95% CI 0.02-1.00%). Conclusions: Approximately 20% of HBV-infected pregnant women are eligible for PAP. Given significant regional variations, each country should tailor strategies for HBsAg screening, risk stratification, and PAP in routine antenatal care. Impact and implications: In 2020, the WHO recommended that pregnant women who test positive for the hepatitis B surface antigen (HBsAg) undergo HBV DNA testing or HBeAg and those with high viremia (≥200,000 IU/ml) or positive HBeAg receive PAP. To effectively implement new HBV PMTCT interventions and integrate HBV screening, risk stratification, and antiviral prophylaxis into routine antenatal care services, estimating the proportion of HBV-infected pregnant women eligible for PAP is critical. In this systematic review and meta-analysis, we found that approximately one-fifth of HBV-infected pregnant women are eligible for PAP based on HBV DNA testing, and a similar proportion is eligible based on HBeAg testing. Owing to substantial regional variations in eligibility proportions and the availability and costs of different tests, it is vital for each country to optimize strategies that integrate HBV screening, risk stratification, and PAP into routine antenatal care services. Systematic review registration: This study was registered with PROSPERO (Protocol No: CRD42021266545).

19.
Article in English | MEDLINE | ID: mdl-38908915

ABSTRACT

Viral hepatitis during pregnancy is common globally. In this review, we focus on the antenatal screen for hepatitis A, B, C and E, the prevention of mother-to-child transmission (MTCT) of hepatitis B and C, and the management of hepatitis A, B, C and E during pregnancy. Neonatal timely administration of hepatitis B immunoglobulin and hepatitis B vaccine is the cornerstone for preventing MTCT of hepatitis B virus (HBV), and perinatal antiviral prophylaxis with tenofovir disoproxil fumarate in mothers with positive HBeAg or HBV DNA >2 × 105 IU/ml also plays important roles in further reducing MTCT. Avoidance of risk practices in managing labor and delivery process of women with HCV infection may be useful to reduce MTCT of HCV. Early recognition of severe hepatic injury or liver failure associated with hepatitis viruses by regular liver function tests is critical to prevent maternal mortality associated with hepatitis.


Subject(s)
Hepatitis, Viral, Human , Infectious Disease Transmission, Vertical , Pregnancy Complications, Infectious , Humans , Pregnancy , Female , Infectious Disease Transmission, Vertical/prevention & control , Pregnancy Complications, Infectious/diagnosis , Pregnancy Complications, Infectious/prevention & control , Hepatitis, Viral, Human/diagnosis , Hepatitis, Viral, Human/prevention & control , Antiviral Agents/therapeutic use , Hepatitis B/prevention & control , Hepatitis B/diagnosis , Hepatitis B/transmission , Carrier State/diagnosis , Mass Screening/methods , Infant, Newborn , Hepatitis A/prevention & control , Hepatitis A/diagnosis , Hepatitis A/transmission , Hepatitis B Vaccines/administration & dosage , Hepatitis B Vaccines/therapeutic use , Hepatitis C/diagnosis , Hepatitis C/prevention & control , Hepatitis C/transmission
20.
J Public Health (Oxf) ; 46(3): 412-418, 2024 Aug 25.
Article in English | MEDLINE | ID: mdl-38869098

ABSTRACT

BACKGROUND: Nigeria has the largest global burden of HIV new infections in children despite global and national concerted efforts at the reduction of mother-to-child transmission of HIV. The goal of this study was to determine the associations between maternal characteristics, practices and mother-to-child transmission of HIV infection among mothers living with HIV. METHODS: This is a hospital-based descriptive cross-sectional study. Information was obtained using interviewer-administered questionnaire from the 240 participants. Data were analyzed with SPSS version 26, and P < 0.05 was considered statistically significant. RESULTS: Out of the 240 mothers recruited, 129 (53.8%) were within 25-35 years of age, with a mean age of 31.08 ± 5.65. A total of 35 (14.6%) of the participants had at least a child with HIV infection. Maternal ART status before childbirth (AOR = 0.02, 95%CI = 0.01-0.05, P = < 0 .001) was the singular determinant of having a child with HIV infection. Mothers who delivered outside the health facility were about four-fold at risk of having an infected child (AOR = 3.89, 95%CI = 1.82-8.50, P = 0.070). CONCLUSION: The prevalence rate of mother-to-child transmission of HIV is high. Routine HIV testing services and the provision of accessible and affordable reproductive health services are recommended for all women of childbearing age.


Subject(s)
HIV Infections , Infectious Disease Transmission, Vertical , Tertiary Care Centers , Humans , Nigeria/epidemiology , Infectious Disease Transmission, Vertical/statistics & numerical data , HIV Infections/epidemiology , HIV Infections/transmission , Female , Cross-Sectional Studies , Adult , Pregnancy , Young Adult , Surveys and Questionnaires , Pregnancy Complications, Infectious/epidemiology , Mothers/statistics & numerical data , Risk Factors
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