Researchers find traces of SARS-CoV-2 in the stool and blood of kids with the post–COVID-19 inflammatory disorder, and signs of increased intestinal permeability.

Half a year after infection, people who had recovered from COVID-19 had robust antibodies, along with traces of the virus in their gut, which may drive long-lasting immunity.

A B-cell receptor critical for the production of a subset of intestinal antibodies has been pinpointed, but the function of those antibodies remains unclear.

A zinc-sensing protein found in fruit fly intestines regulates the insect’s growth and feeding behavior.

An enzyme blocker is highly effective at treating intestinal parasitic infection in mice.

Immune functions in the mouse intestine differ by segment.

Small RNA-containing particles in ginger root are found to promote the growth of beneficial bacteria and alleviate colitis in mouse guts.

Researchers find that stem cells in the human intestine may provide up to 10 percent of circulating blood cells.

An unusual population of immune cells appears to exist in zebrafish as well as mammals.

Two different types of bacteria—one genetically engineered and one from cheese—defend animal intestines from Vibrio cholerae infection.  

Researchers examine the effects on the fruit fly intestine of the protein responsible for Fragile X syndrome in humans. 

Single-cell analyses from mouse samples detail the changes in cell distribution during infections.

Sensory cells of the mouse intestine let the brain know if certain compounds are present by speaking directly to gut neurons via serotonin.

This 3-D model of human intestinal cells could help scientists develop new antimicrobial drugs and therapeutics.

A new anatomical view of the mesentery, which surrounds the lower abdomen, suggests that it should be considered the human body’s 79th organ.

Researchers are using the tissue, synthesized with human pluripotent stem cells and implanted into mice, to study a rare form of Hirschprung’s disease.

A new algorithm opens doors for detecting rare cell types in mRNA sequencing.

Researchers make more progress toward growing human intestines in mice, paving the way for better models of intestinal function and failure.

A hydroxylase inhibitor that prolongs the action of a gut-protective protein shows promise in mice as a treatment for radiation poisoning.