Publications

Maternal pneumococcal capsular IgG antibodies and transplacental transfer are lower in South Asian HIV-infected mother-infant pairs

Post Date: 
2014-03-14
Publication: 
Vaccine
Country: 
Background: Our understanding of the mother-to-child transfer of serotype-specific pneumococcal antibodies is limited in non-immunized, HIV-positive women. Methods: We compared geometric mean antibody concentrations (GMCs), geometric mean transplacental cord:maternal ratios (GMRs) and proportions...

Field evaluation of PIMA point-of-care CD4 testing in Rakai, Uganda

Post Date: 
2014-03-10
Publication: 
PLOS One
Country: 
Objective: To assess the accuracy of PIMA Point-of-Care (POC) CD4 testing in rural Rakai, Uganda. Methods: 903 HIV positive persons attending field clinics provided a venous blood sample assessed on site using PIMA analyzers per manufacturer's specifications. The venous samples were then run on...

The role of viral introductions in sustaining community-based HIV epidemics in rural Uganda: evidence from spatial clustering, phylogenics, and egocentric transmission models

Post Date: 
2014-03-04
Publication: 
PLOS One
Country: 
Background: It is often assumed that local sexual networks play a dominant role in HIV spread in sub-Saharan Africa. The aim of this study was to determine the extent to which continued HIV transmission in rural communities—home to two-thirds of the African population—is driven by intra-community...

Modifiable risk factors associated with tuberculosis disease in children in Pune, India

Post Date: 
2014-02-15
Publication: 
International Journal of Tuberculosis and Lung Disease
Country: 
Setting: India accounts for the largest burden of tuberculosis (TB) worldwide, with 26% of the world's cases. Objective: To assess the association between novel modifiable risk factors and TB in Indian children. Design: Cases were children aged ≤ 5 years with confirmed/probable TB based on World...

Mortality and long-term virologic outcomes in children and infants treated with lopinavir/ritonavir

Post Date: 
2013-12-15
Publication: 
Pediatric Infectious Disease Journal
Country: 
Background: There is scant data on young children receiving protease inhibitor-based therapy in real-life resource-limited settings and on the optimal timing of therapy among children who survive infancy. Our aim was to evaluate outcomes at the Hospital del Niño, Panama, where children have been...

Cost-effectiveness of novel algorithms for rapid diagnosis of tuberculosis in HIV-infected individuals in Uganda

Post Date: 
2013-11-28
Publication: 
AIDS
Country: 
Objective : Xpert MTB/RIF ('Xpert') and urinary lateral-flow lipoarabinomannan (LF-LAM) assays offer rapid tuberculosis (TB) diagnosis. This study evaluated the cost-effectiveness of novel diagnostic algorithms utilizing combinations of Xpert and LF-LAM for the detection of active TB among people...

Pediatric tuberculosis in young children in India: a prospective study

Post Date: 
2013-11-11
Publication: 
BioMed Research International
Country: 
Background: India has one of the highest tuberculosis (TB) burdens globally. However, few studies have focused on TB in young children, a vulnerable population, where lack of early diagnosis results in poor outcomes. Methods: Young children (≤ 5 years) with suspected TB were prospectively enrolled...

The Exposure Assessment in current time (EXACT) study: implementation, feasibility and acceptability of real-time data collection in a community cohort of illicit drug users

Post Date: 
2013-11-06
Publication: 
AIDS Research and Treatment
Country: 
Objective: We describe the study design and evaluate the implementation, feasibility, and acceptability of an ecological momentary assessment (EMA) study of illicit drug users. Design. Four sequential field trials targeting observation of 30 individuals followed for a four week period. Participants...

Leveraging information technology to address the health workforce gap

Post Date: 
2013-11-01
Publication: 
Bulletin of the World Health Organization
According to some estimates, the world needs more than 4 million additional physicians, nurses, pharmacists, laboratory technicians, midwives, community health workers (CHWs) and other front-line health workers. However, there is also a shortage of faculty that can provide high-quality training and...

HIV/AIDS education in traditional Indian systems of medicine: faculty perspectives

Post Date: 
2013-10-24
Publication: 
Journal of Traditional Medicine and and Clinical Naturopathy
Country: 
In India, HIV-infected individuals face numerous challenges in their search for treatments. Currently, western allopathic medicine (hereinafter ‘biomedicine’) offers antiretroviral therapy (ART) for HIV/AIDS and associated co-morbidities that have prolonged survival and improved quality of life...

Cost-effectiveness of Xpert MTB/RIF for diagnosing pulmonary Tuberculosis in the United States

Post Date: 
2013-10-15
Publication: 
International Journal of Tuberculosis and Lung Disease
Country: 
Setting : Conventional approaches to tuberculosis (TB) diagnosis and resistance testing are slow. The Xpert® MTB/RIF assay is an emerging molecular diagnostic assay for rapid TB diagnosis, offering results within 2 hours. However, the cost-effectiveness of implementing Xpert in settings with low TB...

Intensified case-finding of latent tuberculosis infection among the Baltimore City Hispanic population

Post Date: 
2013-08-15
Publication: 
Journal of Immigrant and Minority Health
Country: 
Foreign-born immigrants are at high risk for latent TB infection (LTBI). In conjunction with the Baltimore City Health Department (BCHD), student volunteers conducted intensified LTBI case-finding (ICF) using tuberculin skin testing (TST) in the Hispanic community from 2006-2010. We sought to...

India’s new policy to protect research participants

Post Date: 
2013-07-31
Publication: 
The BMJ
Country: 
Editorial Introduction: India, the country with the largest disease burden in the world,1 is now a major international hub for clinical research. However, a recent policy that was meant to mitigate important ethical concerns may have profound and unintended consequences for public health and may...

Comparison of laboratory costs of rapid molecular tests and conventional diagnostics for detection of tuberculosis and drug-resistant tuberculosis in South Africa

Post Date: 
2013-07-29
Publication: 
BMC Infectious Diseases
Country: 
Background : The World Health Organization has endorsed the use of molecular methods for the detection of TB and drug-resistant TB as a rapid alternative to culture-based systems. In South Africa, the Xpert MTB/Rif assay and the GenoType MTBDRplus have been implemented into reference laboratories...

A qualitative study of barriers to enrollment into free HIV care: perspectives of never-in-care HIV-positive patients and providers in Rakai, Uganda

Post Date: 
2013-07-23
Publication: 
BioMed Research International
Country: 
Background: Early entry into HIV care is low in Sub-Saharan Africa. In Rakai, about a third (31.5%) of HIV-positive clients who knew their serostatus did not enroll into free care services. This qualitative study explored barriers to entry into care from HIV-positive clients who had never enrolled...

Patterns of TB drug-resistance in a tertiary care facility in Pune, India

Post Date: 
2013-07-18
Publication: 
Clinical Microbiology
Country: 
Introduction:Globally, the emergence of multi-drug resistant tuberculosis (MDRTB) (defined as resistance to isoniazid (INH) and rifampicin (RIF) and extensively drug resistant (XDR-TB) (defined as resistance to INH, RIF, any fluoroquinolone and to at least one of the three injectable second line...

Screening for pulmonary tuberculosis in HIV-infected individuals: AIDS Clinical Trials Group Protocol A5253

Post Date: 
2013-04-15
Publication: 
International Journal of Tuberculosis and Lung Disease
Background: Improved tuberculosis (TB) screening is urgently needed for human immunodeficiency virus (HIV) infected patients. Methods: An observational, multi-country, cross-sectional study of HIV-infected patients to compare a standardized diagnostic evaluation (SDE) for TB with standard of care (...

Cost-utility of lateral-flow urine lipoarabinomannan for tuberculosis diagnosis in HIV-infected African adults

Post Date: 
2013-04-15
Publication: 
International Journal of Tuberculosis and Lung Disease
Setting : In-patient hospitals in South Africa and Uganda. Objective : To evaluate the cost-effectiveness of a lateral-flow urine lipoarabinomannan (LAM) test when added to existing strategies for tuberculosis (TB) diagnosis in human immunodeficiency virus infected adults (CD4(+) T-cell counts...

H_pe for mHealth: More "y" or "o" on the horizon?

Post Date: 
2013-04-13
Publication: 
International Journal of Medical Informatics
Objective: Efforts in the domain of mobile health, or mHealth, have been criticized for the unfettered proliferation of pilots and a lack of a rigorous evidence base to support these strategies. In this letter, we present the response of a group of researchers in the mHealth community to the recent...

Changes in HIV-1 subtypes B and C genital tract RNA in women and men after initiation of antiretroviral therapy

Post Date: 
2013-03-26
Publication: 
Clinical Infectious Diseases
Background: Combination antiretroviral therapy (cART) reduces genital tract human immunodeficiency virus type 1 (HIV-1) load and reduces the risk of sexual transmission, but little is known about the efficacy of cART for decreasing genital tract viral load (GTVL) and differences in sex or HIV-1...

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