Pathogen Detection in HIV-infected Children and Adolescents With Non-malarial Febrile Illnesses Using Metagenomic Next-generation Sequencing Approach in Uganda

Rapid diagnostic tests (RDTs) for malaria have highlighted the decreasing proportion of malaria-attributable illness in endemic areas. Unfortunately, once malaria is excluded, there are few accessible diagnostic tools to guide the management of severe febrile illnesses in low-resource settings. RDTs for non-malarial tropical infections currently rely on detection of host antibodies against a single infectious agent yet their sensitivities and specificities are inherently limited. It should be noted that causes of non-malarial febrile illnesses (NMFIs) in HIV-infected children in Uganda remains scarce. There's minimal guidance on how to manage HIV-infected children with NMFIs. Thus, it is important that other causes of fever in African children be better characterized to facilitate optimization of diagnostic and therapeutic algorithms.

Considering these limitations, there is a pressing need for sensitive pathogen-detection-based approaches such as shotgun metagenomics sequencing (sMGS). Ultimately, in the near future, integration of whole-genome based approaches such as long-read sequencing technologies to tropical fevers is urgently needed to improve management of severe and treatable infections especially among the vulnerable groups such as HIV-infected children and adolescents presenting with NMFIs.

This project aims to utilise sMGS to characterize microbial pathogens in HIV-infected Ugandan children and adolescents admitted to Baylor College of Medicine Children's Foundation - Uganda with NMFIs and associated clinical presentations or comorbidities.