A new study shows the rotavirus vaccine has saved 100,000 hospital visits and nearly $1 billion in medical costs.
wheel-shaped virus causing inflammation of the lining of the intestines, 1974, from Latin rota "wheel" (see rotary) + virus.
rotavirus ro·ta·vi·rus (rō'tə-vī'rəs)n. pl. ro·ta·vi·rus·es Any of a group of wheel-shaped RNA viruses of the family Reoviridae, including the human gastroenteritis viruses that cause infant diarrhea. Also called gastroenteritis virus type B.