Publications by authors named "T Lietman"

Purpose: The diagnosis of fungal keratitis using potassium hydroxide (KOH) smears of corneal scrapings enables initiation of the correct antimicrobial therapy at the point-of-care but requires time-consuming manual examination and expertise. This study evaluates the efficacy of a deep learning framework, dual stream multiple instance learning (DSMIL), in automating the analysis of whole slide imaging (WSI) of KOH smears for rapid and accurate detection of fungal infections.

Design: Retrospective observational study.

View Article and Find Full Text PDF

Background: Trachoma programs use the indicator trachomatous inflammation--follicular (TF) to monitor indication for and response to treatment for trachoma at the district level. Alternative indicators, including serologic markers, are increasingly being evaluated for trachoma surveillance. We evaluated seroprevalence of IgG antibodies to the Pgp3 antigen in two districts in Maradi, Niger thought to have low TF prevalence.

View Article and Find Full Text PDF

Children with acute malnutrition are at high risk of morality. Mass azithromycin distribution reduces all-cause mortality among children aged 1-59 months, and effects may be greater in underweight infants. Here, we evaluate the efficacy of azithromycin for reducing all-cause mortality in children aged 6-59 months with acute malnutrition (mid-upper arm circumference, MUAC, < 12.

View Article and Find Full Text PDF
Article Synopsis
  • Mozambique is progressing in eliminating trachoma, but some districts still have TF prevalence above the 5% threshold despite interventions like antibiotic distribution.
  • A study in August 2022 tested residents in four districts for trachoma and other factors like water and hygiene, focusing on children aged 1-9 years.
  • Findings showed TF prevalence between 1.1% and 6.0%, with lower prevalence in three districts, while seroprevalence and transmission rates varied, providing valuable data for monitoring trachoma programs.
View Article and Find Full Text PDF