National decision-making for the introduction of new vaccines: A systematic review, 2010-2020.

BACKGROUND: Competing priorities make using a transparent and evidence-based approach important when deciding to recommend new vaccines. We conducted a literature review to document the processes and frameworks for national decision-making on new vaccine introductions and explored which key features have evolved since 2010. METHODS: We searched literature published on policymaking related to vaccine introduction from March 2010 to August 2020 in six databases. We screened articles for eligibility with the following exclusion criteria: non-human or hypothetical vaccines, the sole focus on economic evaluation or decision to adopt rather than policy decision-making. We employed nine broad categories of criteria from the 2012 review for categorization and abstracted data on the country, income level, vaccine, and other relevant criteria. RESULTS: Of the 3808 unique references screened, 116 met eligibility criteria and were classified as: a) framework of vaccine adoption decision-making (27), b) studies that analyse empirical data on or examples of vaccine adoption decision-making (45), c) theoretical and empirical articles that provide insights into the vaccine policymaking process (44 + 17 already included in the previous categories). Commonly reported criteria for decision-making were the burden of disease; vaccine efficacy/effectiveness, safety; impact on health and non-health outcomes; economic evaluation and cost-effectiveness of alternative interventions. Programmatic and acceptability aspects were not as often considered. Most (50; 82%) of the 61 articles describing the process of vaccine introduction policymaking highlighted the role of country, regional, or global evidence-informed recommendations and a robust national governance as enabling factors for vaccine adoption. CONCLUSIONS: The literature on vaccine adoption decision-making has expanded since 2010. We found that policymakers and expert advisory committee members (e.g., National Immunization Technical Advisory Group [NITAG]) increasingly value the interventions based on economic evaluations. The results of this review could guide discussions on evidence-informed immunization decision-making among country, sub-regional, and regional stakeholders.

Risk Factors Associated with HIV, Sexually Transmitted Infections (STI), and HIV/STI Co-infection Among Youth Living in the Slums of Kampala, Uganda.

The purpose of this analysis was to examine the associated factors of self-reported HIV/STI co-infection among youth living in the slums of Kampala. The study sample consists of a cross-sectional survey. Participants comprised a convenience sample (N = 1134) of youth living on the streets or in the slums (age 12-18). Multinomial logistic regression analyses were used to determine the association between hypothesized risk factors and levels of HIV/STI co-infection, adjusting for sociodemographic variables. Among the sample of youth who were sexually active (n = 586), 9.9% (n = 58) of youth reported HIV/STI co-infection. Among youth with HIV (13.8%), 71.6% reported a co-infection with another STI. In the multivariable analysis, youth with HIV/STI co-infection were more likely to engage in problem drinking (OR 2.55; 95% CI 1.08, 6.02) and drinking alcohol without problematic alcohol behavior (OR 3.43; 95% CI 1.60, 7.36). HIV/STI co-infection rates are high among youth living in the slums of Kampala and warrant urgent attention.

Suicidal Ideation among Youth Living in the Slums of Kampala, Uganda.

The purpose of this study is to examine the factors associated with suicidal ideation among youth living in the slums of Kampala, Uganda. Analyses are based on cross-sectional survey data, collected in 2014, of a convenience sample (n = 1134) of urban service-seeking youth participating in a Uganda Youth Development Link drop-in center. Logistic regression analyses were computed to determine the psychosocial factors associated with suicidal ideation. Among youth participants, 23.54% (n = 266) reported suicidal ideation in the past year. In the multivariable analysis, suicidal ideation was associated with being female (OR: 1.61; 95% CI: 1.15, 2.25), reporting one (OR: 1.51; 95% CI: 1.05, 2.18) or two deceased parents (OR: 1.55; 95% CI: 1.03, 2.35), ever living on the streets (OR: 2.65; 95% CI: 1.86, 3.79), problem drinking (OR: 1.83; 95% CI: 1.19, 2.80), sexually transmitted infection (OR: 1.59; 95% CI: 1.14, 2.21), ever being raped (OR: 1.49; 95% CI: 1.01, 2.20), and experiencing physical child abuse (OR: 2.40; 95% CI: 1.75, 3.27). Our findings underscore many unmet needs in this vulnerable population. However, strategies that specifically seek to address problem drinking-a modifiable risk factor for suicidal ideation-may be particularly warranted in this low-resource setting.

Immunization delivery in the second year of life in Ghana: the need for a multi-faceted approach.

INTRODUCTION: in 2012, pneumococcal conjugate vaccine (PCV), rotavirus vaccine and a second dose of measles-containing vaccine (MCV2) were introduced into the Expanded Program on Immunization (EPI) in Ghana. According to Ghana's EPI schedule, PCV and rotavirus vaccine are given in the first year of life and MCV2 in the second year of life (2YL) at 18 months. Although coverage with the last doses of PCV and rotavirus vaccine reached almost 90% coverage within four years of introduction, MCV2 coverage did not rise above 70%. The World Health Organization Global Measles and Rubella Strategic Plan established a 2020 milestone to achieve at least 95% coverage with the first and second doses of measles-containing vaccine in each district and nationally. We developed a project to address challenges to delivery of immunizations and other child health services at the 18-month visit and throughout the 2YL. METHODS: from March to April 2016, we conducted a cluster survey of households (HHs) with children 24-35 months of age in three regions in Ghana to assess knowledge, attitudes and beliefs among caregivers about immunization during the 2YL and to collect childhood vaccination history data using vaccination cards. Three independent samples were selected from the Northern (NR), Volta (VR), and Greater Accra (GAR) regions. A survey and direct observations were performed a ta representative sample of health facilities (HFs) providing immunization services in the same regions to further characterize barriers to immunization access, utilization and delivery in the 2YL. RESULTS: data on a total of 464 children ages 24-35 months were collected in the HH survey: 211 in NR, 153 in VR, and 100 in GAR (response rate > 99%). First dose of measles-containing vaccine (MCV1) coverage was (NR: 87%, VR: 96%, GAR: 99%); however, MCV2 coverage was lower (NR: 60%, VR: 83%, GAR: 70%). MCV1 to MCV2 dropout was 32% in NR, 14% in VR, and 31% in GAR. Caregiver awareness of immunization against measles was 69% in NR, 75% in VR, and 68% in GAR yet less than half knew the recommended ages for receiving the vaccine, (NR: 4%, VR: 9%, GAR: 44%). Among 160 HFs participating in the survey (>50 in each region), most lacked a defaulter tracing system (NR: 94%,VR: 76%,GAR: 85%). A varying proportion of HCWs correctly indicated how to record a catch-up first dose of MCV administered to an 18-month-old child in the 12-23 month immunization register (NR: 38%, VR: 55%, GAR: 67%) and on the vaccination card (NR: 54%, VR: 53%, GAR: 76%). Although more than half of caregivers would accept text messages, (NR: 57%, VR: 78%, GAR: 96%) including reminders, related to their child's immunizations, < 10% HFs were utilizing this practice. CONCLUSION: challenges encountered with the establishment of an immunization visit beyond the first year of life included knowledge gaps among caregivers, high dropout rates between MCV1 and MCV2 in all study regions, and a lack of defaulter tracing systems in most healthcare facilities providing childhood immunizations. Targeted strategies that promote behavioral, cultural, and policy changes are needed to strengthen 2YL child health service delivery and improve vaccination coverage.