Phylodynamic analysis reveals disparate transmission dynamics of -complex lineages in Botswana.

Tuberculosis epidemics have traditionally been conceptualized as arising from a single uniform pathogen. However, -complex (Mtbc), the pathogen causing tuberculosis in humans, encompasses multiple lineages exhibiting genetic and phenotypic diversity that may be responsible for heterogeneity in TB transmission. We analysed a population-based dataset of 1,354 Mtbc whole-genome sequences collected over four years in Botswana, a country with high HIV and tuberculosis burden.

Punishment is slower than cooperation or defection in online network games.

Punishment serves as a balancing force that dissuades people from acting selfishly, which complements cooperation as an essential characteristic for the prosperity of human societies. Past studies using economic games with two options (cooperation and defection) reported that cooperation decisions are generally faster than defection decisions and that time pressure possibly induces human players to be more intuitive and thus cooperative. However, it is unclear where punishment decisions sit on this time spectrum.

Impact of SARS-CoV-2 vaccines on Covid-19 incidence and mortality in the United States.

Background: Given the waning of vaccine effectiveness and the shifting of the most dominant strains in the U.S., it is imperative to understand the association between vaccination coverage and Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2) disease and mortality at the community levels and whether that association might vary according to the dominant SARS-CoV-2 strains in the U.

Housing, sanitation and living conditions affecting SARS-CoV-2 prevention interventions in 54 African countries.

The feasibility of non-pharmacological public health interventions (NPIs) such as physical distancing or isolation at home to prevent severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission in low-resource countries is unknown. Household survey data from 54 African countries were used to investigate the feasibility of SARS-CoV-2 NPIs in low-resource settings. Across the 54 countries, approximately 718 million people lived in households with ⩾6 individuals at home (median percentage of at-risk households 56% (95% confidence interval (CI), 51% to 60%)).

Rifampicin Mono-Resistant Tuberculosis-A Review of an Uncommon But Growing Challenge for Global Tuberculosis Control.

Tuberculosis (TB) remains the leading cause of death by an infectious pathogen worldwide, and drug-resistant TB is a critical and rising obstacle to global control efforts. Most scientific studies and global TB efforts have focused on multidrug-resistant TB (MDR-TB), meaning isolates resistant to both isoniazid (INH) and rifampicin (RIF). Newer diagnostic tests are resulting in an increasing awareness of RIF-resistant TB in addition to MDR disease.

A pragmatic stepped-wedge cluster randomized trial to evaluate the effectiveness and cost-effectiveness of active case finding for household contacts within a routine tuberculosis program, San Juan de Lurigancho, Lima, Peru.

Background: Active case finding (ACF) in household contacts of tuberculosis (TB) patients is now recommended for National TB Programs (NTP) in low- and middle-income countries. However, evidence supporting these recommendations remains limited. This study evaluates the effectiveness and cost-effectiveness of ACF for household contacts of TB cases in a large TB endemic district of Lima, Peru.

Transformative learning as pedagogy for the health professions: a scoping review.

Context: Transformative learning (TL) has been described as learning that challenges established perspectives, leading to new ways of being in the world. As a learning theory it has resonated with educators globally, including those in the health professions. Described as a complex metatheory, TL has evolved over time, eliciting divergent interpretations of the construct.

Translating Predictions of Zoonotic Viruses for Policymakers.

Recent outbreaks of Ebola virus disease and Zika virus disease highlight the need for disseminating accurate predictions of emerging zoonotic viruses to national governments for disease surveillance and response. Although there are published maps for many emerging zoonotic viruses, it is unknown if there is agreement among different models or if they are concordant with national expert opinion. Therefore, we reviewed existing predictions for five high priority emerging zoonotic viruses with national experts in Cameroon to investigate these issues and determine how to make predictions more useful for national policymakers.

Reframing undergraduate medical education in global health: Rationale and key principles from the Bellagio Global Health Education Initiative.

Global health education (GHE) continues to be a growing initiative in many medical schools across the world. This focus is no longer limited to participants from high-income countries and has expanded to institutions and students from low- and middle-income settings. With this shift has come a need to develop meaningful curricula through engagement between educators and learners who represent the sending institutions and the diverse settings in which GHE takes place.

What explains gender inequalities in HIV/AIDS prevalence in sub-Saharan Africa? Evidence from the demographic and health surveys.

Background: Women are disproportionally affected by human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) in sub-Saharan Africa (SSA). The determinants of gender inequality in HIV/AIDS may vary across countries and require country-specific interventions to address them. This study aimed to identify the socio-demographic and behavioral characteristics underlying gender inequalities in HIV/AIDS in 21 SSA countries.

The Haiti Medical Education Project: development and analysis of a competency based continuing medical education course in Haiti through distance learning.

Background: Recent calls for reform in healthcare training emphasize using competency-based curricula and information technology-empowered learning. Continuing Medical Education programs are essential in maintaining physician accreditation. Haitian physicians have expressed a lack access to these activities.

Implementation of a stepped-wedge cluster randomized design in routine public health practice: design and application for a tuberculosis (TB) household contact study in a high burden area of Lima, Peru.

Background: We designed a pragmatic stepped-wedge cluster randomized controlled trial in order to evaluate provider-initiated evaluation of household contacts (HCs) of smear positive tuberculosis (TB) cases within a routine TB program in Lima, Peru.

Methods/design: National TB program (NTP) officers of San Juan de Lurigancho District (Lima, Peru) and university-based researchers jointly designed a pragmatic stepped-wedge cluster randomized trial design in order to evaluate a planned active case finding (ACF) program for all HCs of smear-positive TB cases in 34 district healthcare centres. Randomization of time to intervention initiation was stratified by health centre TB case rate.

Forecasting malaria in a highly endemic country using environmental and clinical predictors.

Background: Malaria thrives in poor tropical and subtropical countries where local resources are limited. Accurate disease forecasts can provide public and clinical health services with the information needed to implement targeted approaches for malaria control that make effective use of limited resources. The objective of this study was to determine the relevance of environmental and clinical predictors of malaria across different settings in Uganda.

Public transportation and tuberculosis transmission in a high incidence setting.

Background: Tuberculosis (TB) transmission may occur with exposure to an infectious contact often in the setting of household environments, but extra-domiciliary transmission also may happen. We evaluated if using buses and/or minibuses as public transportation was associated with acquiring TB in a high incidence urban district in Lima, Peru.

Methods: Newly diagnosed TB cases with no history of previous treatment and community controls were recruited from August to December 2008 for a case-control study.

Educational objectives for international medical electives: a literature review.

Purpose: Although most medical schools and residency programs offer international medical electives (IMEs), little guidance on the educational objectives for these rotations exists; thus, the authors reviewed the literature to compile and categorize a comprehensive set of educational objectives for IMEs.

Method: In February and July 2012, the authors searched SciVerse Scopus online, which includes the Embase and MEDLINE databases, using specified terms. From the articles that met their inclusion criteria, they extracted the educational objectives of IMEs and sorted them into preelective, intraelective, and postelective objectives.

Global health education in U.S. medical schools.

Interest in global health (GH) among medical students worldwide is measurably increasing. There is a concomitant emphasis on emphasizing globally-relevant health professions education. Through a structured literature review, expert consensus recommendations, and contact with relevant professional organizations, we review the existing state of GH education in US medical schools for which data were available.

A scoping review of malaria forecasting: past work and future directions.

Objectives: There is a growing body of literature on malaria forecasting methods and the objective of our review is to identify and assess methods, including predictors, used to forecast malaria.

Design: Scoping review. Two independent reviewers searched information sources, assessed studies for inclusion and extracted data from each study.

Forecasting high-priority infectious disease surveillance regions: a socioeconomic model.

Background: Few researchers have assessed the relationships between socioeconomic inequality and infectious disease outbreaks at the population level globally. We use a socioeconomic model to forecast national annual rates of infectious disease outbreaks.

Methods: We constructed a multivariate mixed-effects Poisson model of the number of times a given country was the origin of an outbreak in a given year.

Timeliness of nongovernmental versus governmental global outbreak communications.

To compare the timeliness of nongovernmental and governmental communications of infectious disease outbreaks and evaluate trends for each over time, we investigated the time elapsed from the beginning of an outbreak to public reporting of the event. We found that governmental sources improved the timeliness of public reporting of infectious disease outbreaks during the study period.

Are we there yet? Preparing Canadian medical students for global health electives.

Purpose: To understand the current landscape and the evolution of predeparture training (PDT) in Canadian medical education.

Method: The authors surveyed one faculty and one student global health leader at each of Canada's 17 medical schools in February 2008 and May 2010 to assess the delivery of and requirements for PDT at each institution. The authors then used descriptive statistics to compare responses across schools and years.

Self-reported risks for multiple-drug resistance among new tuberculosis cases: implications for drug susceptibility screening and treatment.

Background: Multiple drug-resistance in new tuberculosis (TB) cases accounts for the majority of all multiple drug-resistant TB (MDR-TB) worldwide. Effective control requires determining which new TB patients should be tested for MDR disease, yet the effectiveness of global screening recommendations of high-risk groups is unknown.

Methods: Sixty MDR-TB cases with no history of previous TB treatment, 80 drug-sensitive TB and 80 community-based controls were recruited in Lima, Peru between August and December, 2008 to investigate whether recommended screening practices identify individuals presenting with MDR-TB.

Teaching the basics: core competencies in global health.

Compelling moral, ethical, professional, pedagogical, and economic imperatives support the integration of global health topics within medical school curriculum. Although the process of integrating global health into medical education is well underway at some medical schools, there remain substantial challenges to initiating global health training in others. As global health is a new field, faculties and schools may benefit from resources and guidance to develop global health modules and teaching materials.

The BCG World Atlas: a database of global BCG vaccination policies and practices.

Madhu Pai and colleagues introduce the BCG World Atlas, an open access, user friendly Web site for TB clinicians to discern global BCG vaccination policies and practices and improve the care of their patients.

Global health competencies and approaches in medical education: a literature review.

Background: Physicians today are increasingly faced with healthcare challenges that require an understanding of global health trends and practices, yet little is known about what constitutes appropriate global health training.

Methods: A literature review was undertaken to identify competencies and educational approaches for teaching global health in medical schools.

Results: Using a pre-defined search strategy, 32 articles were identified; 11 articles describing 15 global health competencies for undergraduate medical training were found.