Abstract
Following the discovery that sodium transport and glucose transport are coupled in the small intestine, such that glucose accelerates solute and water absorption, highlighted oral hydration), along with other 20th-century milestones like the development of penicillin and viral cultures that preceded the polio vaccine; this opinion article refers to the participation of Costa Rica in the successful development of an applied research study on a priority health problem: oral rehydration in diarrhea caused by viruses.
Keywords: diarrhea; oral rehydration; rotavirus; intestinal absorption