Lea este articulo en Espanol

About Rotavirus

Almost all kids have had a rotavirus infection by the time they're 5 years old. Rotavirus is one of the most common causes of diarrhea, and severe infection (rotavirus gastroenteritis) is the leading cause of severe, dehydrating diarrhea in infants and young children.

In the U.S., rotavirus infections are responsible for about 3 million cases of diarrhea and 55,000 hospitalizations for diarrhea and dehydration in children younger than 5 years old each year.

Although these infections cause relatively few U.S. deaths, diarrhea caused by rotavirus causes more than half a million deaths worldwide every year. This is especially true in developing countries, where nutrition and health care are not optimal.

Signs and Symptoms

Body Basics: Digestive System

Kids with a rotavirus infection have fever, nausea, and vomiting, often followed by abdominal cramps and frequent, watery diarrhea. Kids may also have a cough and runny nose. As with all viruses, though, some rotavirus infections cause few or no symptoms, especially in adults.

Sometimes the diarrhea that accompanies a rotavirus infection is so severe that it can quickly lead to dehydration. Signs of dehydration include thirst, irritability, restlessness, lethargy, sunken eyes, a dry mouth and tongue, dry skin, fewer trips to the bathroom to pee, and (in infants) a dry diaper for several hours.


In the United States, rotavirus infection outbreaks are common during the winter and spring months. It is particularly a problem in childcare centers and children's hospitals because rotavirus infection is very contagious.

The virus passes in the stool of infected people before and after they have symptoms of the illness. Kids can become infected if they put their fingers in their mouths after touching something that has been contaminated. Usually this happens when kids don't wash their hands often enough, especially before eating and after using the toilet.

People who care for kids, including health care and childcare workers, also can spread the virus, especially if they don't wash their hands after changing diapers.


The American Academy of Pediatrics (AAP) now recommends a rotavirus vaccine be included in the lineup of routine immunizations given to all infants.

The RotaTeq vaccine has been found to prevent approximately 75% of cases of rotavirus infection and 98% of severe cases. Another vaccine, Rotarix, also is available and is effective in preventing rotavirus infection. Your doctor will have the most current information about these vaccines.

A previous rotavirus vaccine was taken off the market in 1999 because it was linked to an increased risk for intussusception, a type of bowel obstruction, in young infants. Neither RotaTeq nor Rotarix have been found to have this increased risk.

Washing hands well and often is the best way to limit the spread of rotavirus infection. Kids who are infected should stay home from childcare groups until their diarrhea has ended. In hospitals, rotavirus outbreaks are controlled by isolating infected patients and following strict hand-washing procedures.

Professional Treatment

An infant or toddler who becomes moderately or severely dehydrated may need to be treated in a hospital with intravenous (IV) fluids to bring the body's fluid and salt levels back to normal. Most older kids can be treated at home.

Your doctor may need to test your child's blood, urine, or stool to confirm that the diarrhea is being caused by rotavirus and not by bacteria. Because antibiotics do not work against illnesses caused by viruses, the doctor will not prescribe antibiotics to treat a rotavirus infection.

Home Treatment

To prevent dehydration, follow your doctor's guidance about what your child should eat and drink. Your doctor may suggest that you give your child special drinks that replace body fluids, especially if the diarrhea has been going on for longer than 2 or 3 days.

In general, kids with mild diarrhea who are not dehydrated should continue to eat normally but should drink more fluids. (Fruit juices and soft drinks can make diarrhea worse and should be avoided.) Those who have mild to moderate dehydration should get small, frequent amounts of an oral rehydration solution, then should go back to eating normally when they're better. Children who are breastfed should be breastfed throughout.

A child who is vomiting will need to eat smaller amounts of food more often. Follow your doctor's advice and don't give your child store-bought medicines for vomiting or diarrhea unless your doctor recommends them.

When to Call the Doctor

Call the doctor for advice if your child has signs of a rotavirus infection, including watery diarrhea, fever, nausea, and vomiting. Call immediately if your child has signs of dehydration.

Reviewed by: Jamie L. Clute, MD
Date reviewed: September 2014

Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.

© 1995-2015 KidsHealth® All rights reserved.
Images provided by iStock, Getty Images, Corbis, Veer, Science Photo Library, Science Source Images, Shutterstock, and

Bookmark and Share

Related Resources
OrganizationCenters for Disease Control and Prevention (CDC) The CDC (the national public health institute of the United States) promotes health and quality of life by preventing and controlling disease, injury, and disability.
OrganizationU.S. Food and Drug Administration (FDA) The FDA is responsible for protecting the public health by ensuring the safety, efficacy, and security of human and veterinary drugs, biological products, medical devices, our nation's food supply, cosmetics, and products that emit radiation.
OrganizationAmerican Academy of Pediatrics (AAP) The AAP is committed to the health and well-being of infants, adolescents, and young adults. The website offers news articles and tips on health for families.
Web SiteCDC: Vaccines & Immunizations The CDC's site has information on vaccines, including immunization schedules, recommendations, FAQs, and more.
OrganizationImmunization Action Coalition This organization is a source of childhood, adolescent, and adult immunization information as well as hepatitis B educational materials.
Related Articles
What Are Germs? Germs are the microscopic bacteria, viruses, fungi, and protozoa that can cause disease. With a little prevention, you can keep harmful germs out of your family's way.
Intussusception This bowel problem is the most common cause of bowel blockages in very young children. With timely treatment, kids recover quickly.
Dehydration Sometimes kids lose fluids and salts through fever, diarrhea, vomiting, or long periods of exercise with excessive sweating. Here are some tips on preventing or treating dehydration.
Diarrhea Most kids battle diarrhea from time to time, so it's important to know what to do to relieve and even prevent it.
Your Child's Immunizations Immunizations protect your child from potentially fatal diseases. Find out what vaccines your child needs to grow up healthy.
Immunization Schedule Which vaccines does your child need to receive and when? Use this immunization schedule as a handy reference.
Developments Developments
Sign up for enewsletter
Get involved Get involved
Discover ways to support Akron Children's