Associations of Sociodemographic and Clinical Factors with Late Presentation for Early Infant HIV Diagnosis (EID) Services in Kenya

Background: Understanding the missed opportunities in early infant HIV testing within the PMTCT program is essential to address any gaps. The study set out to describe the clinical and sociodemographic characteristics of the infants presenting late for early infant diagnosis in Kenya. Methods: We abstracted routinely collected clinical and sociodemographic characteristics, in a cross-sectional study, on all HIV-infected infants with a positive polymerase chain reaction (PCR) test from 1,346 President’s Emergency Plan for AIDS Relief (PEPFAR) supported health facilities for the period October 2016 to September 2018. We used multivariate logistic regression to examine the association of sociodemographic and clinical characteristics with late (>2 months after birth) presentation for infant HIV testing. Results: Of the 4,011 HIV-infected infants identified, the median infant age at HIV diagnosis was 3 months [interquartile range (IQR), 1-16 months], and two-thirds [2,669 (66.5%)] presented late for infant HIV testing. Factors that were associated with late presentation for infant testing were: maternal ANC non-attendance, adjusted odds ratio (aOR) 1.41 (95% confidence interval (CI) 1.18 -1.69); new maternal HIV diagnosis, aOR 1.45, (95%CI 1.24 -1.7); and lack of maternal antiretroviral therapy(ART), aOR 1.94, (95% CI 1.64 - 2.30). There was a high likelihood of identifying HIV-infected infants among infants who presented for medical services in the outpatient setting (aOR 18.9; 95% CI 10.2 - 34.9) and inpatient setting (aOR 12.2; 95% CI 6.23-23.9) compared to the infants who presented late in maternity. Conclusion and Global Health Implications: Gaps in early infant HIV testing suggest the need to increase maternal pre-pregnancy HIV diagnosis, timely antenatal care, early infant diagnosis services, early identification of mothers who seroconvert during pregnancy or breastfeeding and improved HIV screening in outpatient and inpatient settings. Early referral from the community and access to health facilities should be strengthened by the implementation of national PMTCT guidelines. Copyright © 2021 Langat et al. Published by Global Health and Education Projects, Inc. This is an open-access article distributed under the terms of the Creative Commons Attribution License CC BY 4.0.

Evaluation of an SMS-based mHealth intervention to enhance early infant diagnosis follow-up testing and assessment of postnatal prophylaxis

Background: Adherence to infant antiretroviral (ARV) postnatal prophylaxis and early infant diagnosis (EID) uptake is low in Africa. Promoting EID and adherence are necessary for this age group.Objectives: We evaluated an SMS-based mobile health (mHealth) intervention to enhance adherence to ARV prophylaxis and knowledge of EID and prevention of mother-to-child transmission (PMTCT) among high-risk and low-risk mother–infant pairs.Method: Two hundred and fifty-one mothers were recruited from King Edward VIII Hospital between December 2018 and October 2019. Participant information was captured, and SMS reminders were sent postnatally to promote immunisation attendance. Follow-up HIV polymerase chain reaction (PCR) test results were reviewed, and telephonic interviews were utilised for qualitative data.Results: In all, 73.3% of infants had HIV PCR tests performed at 10 weeks. This high rate could be attributed to the mHealth intervention as this is considerably higher than other national studies, though not statistically significant compared to rates reported in the district at the same time. Factors that have impacted follow-up EID rates include poor maternal knowledge of EID time points and inadequate implementation of national PMTCT protocols. High-risk mothers were younger, commenced antenatal clinic visit later, were less knowledgeable on prophylaxis and have lower-birthweight infants than lower-risk mothers.Conclusion: mHealth can play an important role in improving EID by increasing maternal knowledge. Further studies should focus on whether maternal education over an mHealth platform can increase knowledge on PMTCT and subsequently increase EID.

Early infant diagnosis of HIV-I infection using dried blood spots among children born to seropositive mothers in Federal Medical Centre (FMC) Lokoja

Early diagnosis of Human immunodeficiency virus (HIV) in infants provides a critical opportunity to strengthen follow-up of HIV- exposed children using dried blood spots and assure early access to antiretroviral treatment for infected children. This study aimed to determine the prevalence of HVI-1 infection in infants born to HIV-seropositive mothers. Early infant diagnosis of HIV sub-type I was carried out using on dried blood spots of 286 babies born to HIV-I seropositive mothers attending the Federal Medical Centre, Lokoja - Kogi State, Nigeria, between the months of July to December, 2013. Data obtained was analyzed using Gene Amp PCR System 9700. The overall rate of HIV-I vertical transmission from infected mothers to their babies was 14.5%. High transmission rates 63.5%was seen in babies whose mothers could not get any form of interventions with the least transmission rates seen in babies whose mothers either took HAART or were one form of ARV or the other (0 – 1.0%). Babies who took nevirapine as prophylaxis after delivery had lower rate (1%) of transmission. From the 30 women that mix-fed their babies, 6.7% transmission rate was recorded.Lack of antiretroviral drugs by HIV-I positive pregnant women was found to be associated with high rate of HIV-I transmission (p<0.05). Early intervention of mother to child transmission of HIV-1 infection using Highly Active Antiretroviral Therapy, exclusive breastfeeding practice as well as constant visit to Tertiary Hospitals for counseling and management of HIV infection reduced the rate of infection among the infants born to seropositive mothers.

Strategic site selection for placement of HIV early infant diagnosis point-of-care technology within a national diagnostic network in Lesotho

Background: New technologies for rapid point-of-care (POC) diagnostic tests hold great potential for improving the health outcomes of HIV-exposed infants. POC testing for HIV early infant diagnosis (EID) was introduced in Lesotho in late 2016. Here we highlight critical requirements for selecting routine POC EID sites to ensure a sustainable and optimised EID diagnostic network.Intervention: Lesotho introduced POC EID in a phased approach that included assessments of national databases to identify sites with high test volumes, the creation of local networks of sites to potentially increase access to POC EID, and a standardised capacity assessment to determine site readiness. Potential site networks comprising ‘hub’ testing sites and ‘spoke’ specimen referring sites were created.Lessons learnt: After determining optimal placement, a total of 29 testing facilities were selected for placement of POC EID to potentially increase access to 189 facilities through the use of a hub-and-spoke model. Site capacity assessments identified vital human resources and infrastructure capacity gaps that needed to be addressed before introducing POC EID and informed appropriate POC platform selection.Recommendations: POC placement involves more than just purchasing the testing platforms. Considering the relatively small proportion of sites that can be eligible for placement of a POC platform, utilising a hub-and-spoke model can maximise the number of health facilities served by a POC platform while reducing the necessary capacity building and infrastructure investments to fewer sites.

Operational experiences associated with the implementation of near point-of-care early infant diagnosis of HIV in Myanmar: a qualitative study

Background Timely diagnosis and early initiation of life-saving antiretroviral therapy are critical factors in preventing mortality among HIV-infected infants. However, resource-limited settings experience numerous challenges associated with centralised laboratory-based testing, including low rates of testing, complex sample referral pathways and unacceptably long turnaround times for results. Point-of-care (POC) HIV testing for HIV-exposed infants can enable same-day communication of results and early treatment initiation for HIV-infected infants. However, complex operational issues and service integration can limit utility and must be well understood prior to implementation. We explored and documented the challenges and enabling factors in implementing the POC Xpert® HIV-1 Qual test (Cepheid, Sunnyvale, CA, USA) for early infant diagnosis (EID) as part of routine services in four public hospitals in Myanmar. Methods This sub-study was part of a randomised controlled stepped-wedge trial (Australian and New Zealand Clinical Trials Registry, number 12616000734460) designed to investigate the impact of POC testing for EID in Myanmar and Papua New Guinea. Infants recruited during the intervention phase underwent POC testing at the participating hospitals as part of routine care. Semi-structured interviews with 23 caregivers, 12 healthcare providers and 10 key informants were used to explore experiences of POC-EID testing. The research team and hospital staff documented and discussed implementation challenges throughout the study. Results Overall, caregivers and healthcare workers were satisfied with the short turnaround time of the POC test. Occasional delays in POC testing were mostly attributable to late receipt of samples by laboratory technicians and communication constraints among healthcare staff. Hospital staff valued technical assistance from the research group and the National Health Laboratory. Despite staff shortages and infrastructure challenges such as unreliable electricity supply and cramped space, healthcare workers and caregivers found the implementation of the POC test to be feasible at pilot sites. Conclusions As plans for national scale-up evolve, there needs to be a continual focus on staff training, communication pathways and infrastructure. Other models of care, such as allowing non-laboratory-trained personnel to perform POC testing, and cost effectiveness should also be evaluated.

Prevention of Mother-to-Child HIV Transmission in Nigeria: Six Years Experience from a Tertiary Institution

Background: In line with global standards and progress made in Prevention of Mother-to-Child Transmission (PMTCT), an assessment of the outcome of Early Infant Diagnosis in northern Nigeria is necessary to evaluate progress towards a zero Human immunodeficiency Virus (HIV) infection rate among children. Objectives: This study assessed the infection rate and risk factors for mother-to-child HIV transmission among HIV-exposed children in Kano, northwest Nigeria. Method: Using a retrospective cohort design, pregnant HIV-positive women and their exposed infants were recruited over a period of six years (2010 to 2016). Participants were enrolled during pregnancy or at delivery from the PMTCT clinic of a tertiary health facility in Kano, Nigeria. The main observations of the study were Early infant diagnosis positivity for HIV at 6 weeks and the risk factors for positivity. Results: Of the 1,514 infants studied, Early Infant Diagnosis was positive for HIV among 13 infants (0.86%). Infants whose mothers did not have antiretroviral therapy (adjusted Prevalence Ratio aPR = 2.58, 95%CI [1.85- 3.57]); who had mixed feeding (aPR = 12.06, 95%CI [9.86- 14.70]) and those not on antiretroviral prophylaxis (aPR = 20.39, 95%CI [16.04- 25.71]) were more likely to be infected with HIV. HIV-exposed infants on nevirapine and zidovudine prophylaxis accounted for 95% and 74%, respectively, and were less likely to be infected with HIV. Conclusion: HIV infection rate remains high among HIV-exposed infants whose mothers did not receive PMTCT services. Scaling up proven interventions of early commencement of antiretroviral treatment for mothers, adherence to antiretroviral prophylaxis and avoidance of mixed feeding among HIV-exposed infants would protect future generations from HIV infection.

Trends in uptake of early infant diagnosis for HIV: implementation results of the Ugandan military PMTCT program

Background: Early infant diagnosis (EID) is an important strategy of the Prevention of Mother-to-child transmission (PMTCT) and when implemented in combination with other strategies could eliminate HIV MTCT. We implemented a series of strategic interventions intended to improve EID at 9 Military facilities in Uganda and evaluated their impact on uptake of EID.Methods: A retrospective cross-sectional design was adopted, following-up HIV Exposed Infants (HEI) at the study sites over a 2 year period, and using a data extraction tool to capture4 indicators of EID namely; number of HIV-positive mothers, number of HEI enrolled, number of PCR and rapid tests performed on HEI, and number of HIV-positive results of HEI. Scatter plots and simple linear regression were applied to demonstrate trends in EID uptake and estimate intervention impact over time. Statistical significance was assumed at p<0.05.Results: We established incremental trends in numbers of first PCR (f [1,6]=2.8; p=0.15),third PCR (f [1,6]=8.4; p<0.05), rapid tests (f [1,6]=16.1; p<0.05) performed on HEI, and a modest decline in HIV-positivity among HEI over the study period. The intervention improved retention in PMTCT cascade to 80%, when contrasted with the national average of 70%.Conclusions: We have demonstrated that interventions invoking pre-booking HIV-positive pregnant mothers during antenatal care, follow up of mother-baby pairs using telephone and mentor mothers and integrating EID in immunization programs can improve uptake of EID in a relatively short period, and with a positive impact on EID indicators.