Microbial populations are continuous along the gastrointestinal tract, with increased transmission in colorectal cancer and rheumatoid arthritis patients.

Contact with bacteria and subsequent hypoxia promotes functional maturation of the immature gastrointestinal tract.

Oral bacteria colonize the gut more frequently than previously thought.

The ASAP initiative will incentivize collaboration between researchers and encourage open-science practices to improve our understanding of the biology underlying Parkinson's disease.

Polymorphisms in the IFNL4 gene that affect both the form and the activity of the coded protein are associated with changes in the hepatitis C virus.