NIH-funded research R01 grant

Gut bacteria that may change how severe malaria becomes

Official title: Role of the Gut Microbiota in Shaping Severity of Malaria

Funded at Indiana University Indianapolis · NIH-11333271 · Data updated 2026-11-12

This work looks at whether certain gut bacteria make malaria worse in children and could point to ways to lower the risk of severe malaria.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionIndiana University Indianapolis
NIH-funded
Lab location1 site (Indianapolis, United States)
Project startMay 3, 2024
Project endApril 30, 2029
Funding year2026
Award (this year)$728,527
NIH project number5R01AI183911-03
Project IDNIH-11333271 on NIH RePORTER

Who could benefit from this research

Could help

Children in malaria-endemic regions, especially those with recent Plasmodium infections or severe malarial anemia, would be the most relevant participants or sample donors for this work.

Less likely to help

People without exposure to malaria (for example those living in non-endemic areas) or those needing immediate treatment for acute malaria are unlikely to get direct benefit from this research right away.

What this research studies

If my child got malaria, this research would look at whether specific gut bacteria make the illness more severe. Scientists will compare gut microbes from children with severe malaria to those with mild or no symptoms and will study the effects of those human-associated bacteria in mice. The team focuses on Bacteroides species and how they change immune responses in the spleen and blood that affect parasite levels. The goal is to find microbial targets or strategies that could one day reduce the chance of severe malaria.

Why it matters

Potential benefit: If successful, this work could lead to new ways to prevent or lessen severe malaria by targeting gut bacteria or their effects on the immune system.

How similar studies have gone: Previous studies in mice and observational work in humans have linked gut microbes to malaria outcomes, but identifying the specific bacterial species and mechanisms is a newer, less-tested step.

Where this research is happening

  • Indiana University Indianapolis
    Indianapolis, United States
    Active

Researchers

  • Principal investigator: Schmidt, Nathan — Indiana University Indianapolis
  • Study coordinator: Schmidt, Nathan

Related research

Other NIH-funded projects on the same topics.

  • How gut bacteria affect immune responses to malaria vaccines

    This study is looking at how the bacteria in our gut might affect how well malaria vaccines work, especially for people in Africa, by using mice that have similar gut bacteria to those found in that region.

    NIH research Indiana University Indianapolis · Indianapolis, United States · NIH-11124081

  • How gut bacteria influence the severity of malaria in children

    This study is looking at how the bacteria in our gut might influence how severe malaria can be in children, with the hope of finding new ways to help prevent and treat the disease.

    NIH research Indiana University Indianapolis · Indianapolis, United States · NIH-11083735

  • The role of gut bacteria in malaria infections

    This study is looking at how the bacteria in children's guts might affect how serious their malaria infections become, especially those caused by the Plasmodium falciparum parasite, to help us understand if keeping their gut healthy can make a difference in their fight against malaria.

    NIH research Indiana University Indianapolis · Indianapolis, United States · NIH-10851996

  • How mosquito gut bacteria affect egg production and malaria infection

    This study looks at how the tiny bacteria in the stomachs of female mosquitoes affect their ability to lay eggs and how malaria parasites grow inside them, which could help us find new ways to control malaria by focusing on the mosquitoes' breeding habits.

    NIH research University of Georgia · Athens, United States · NIH-10826603

  • Gut microbiome and Parkinson's disease: how gut bugs relate to symptoms and progression

    A multi-year study will look at gut bacteria and related markers in people with Parkinson’s disease to understand how the gut-brain connection may influence symptoms and progression.

    NIH research University of Chicago · Chicago, United States · NIH-11583671

  • Gut-Brain Axis in Parkinson’s Disease: biomarkers and procedures to track progression

    A patient-focused program to study how gut health and the brain interact in Parkinson’s disease using biomarkers and clinical procedures.

    NIH research Rush University Medical Center · Chicago, United States · NIH-11582685

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.