Rotavirus and Adenovirus Infections

Created: 13.04.2026  ·  Last Updated: 08.07.2026  ·  Category: Pediatrics  ·  Prepared by the Academic Hospital Web and Editorial Board.

Viruses are known to be the most common cause of acute diarrhea in childhood. Viruses such as rotavirus and adenovirus most commonly cause gastrointestinal system diseases in children. They mainly present with complaints such as acute-onset vomiting, diarrhea, cramp-like abdominal pain, fever, weight loss, dryness in the mouth and skin due to sudden fluid loss, headache and fatigue.

Important Information: In viral diarrhea such as rotavirus and adenovirus, the main risk is fluid loss. Antibiotics are not effective in viral diarrhea; the treatment approach should be planned according to the child’s fluid loss, general condition and nutritional status.

Rotavirus Infection

Due to diarrhea associated with rotavirus infection, approximately 25 million outpatient clinic visits occur worldwide every year. While it is frequently seen under the age of 2, it is thought that a child who reaches the age of 5 will have had rotavirus infection at least once. Each year, nearly 2 million infants and children are hospitalized, and rotavirus infections are held responsible for 39% of hospitalizations related to diarrhea.

Do Not Delay Diarrhea, Vomiting and Fluid Loss Complaints in Children

If rotavirus or adenovirus is suspected, or if recurrent vomiting, diarrhea, fever, dry mouth, fatigue or inability to take fluids occurs, you can receive an evaluation from pediatric specialists.

Rotavirus Transmission Routes

The route of transmission is generally through infected water or food, hands contaminated with stool, various objects and toys, in the form of direct or indirect person-to-person contact.

Rotavirus Symptoms

After an incubation period of approximately 2-4 days, fever and vomiting develop suddenly, followed by diarrhea that may reach up to 10 episodes. The child’s stool is bloodless and very watery.

Problems related to rotavirus generally depend on fluid and salt balance disturbances that develop after excessive vomiting and profuse watery diarrhea.

Adenovirus Infection

Diarrhea associated with adenovirus infection generally causes outbreaks in childcare centers, hospitals and kindergartens. There is no seasonal relationship, meaning it can occur throughout the year.

Adenovirus Symptoms

Following an incubation period of 3-10 days, vomiting and diarrhea occur. Diarrhea may continue for up to 1 week together with vomiting and fever. Sometimes it may last longer than rotavirus diarrhea.

Adenovirus diarrhea is also more common under the age of 2. It is the second most common cause of hospitalization among acute viral diarrheas.

Both rotavirus and enteric adenovirus infections can be diagnosed quickly by testing viral antigens in stool.

Rotavirus and Adenovirus Treatments

They do not have specific treatments. The basis of treatment is to evaluate the patient quickly and correctly, correct fluid loss and salt imbalance in the body, and arrange nutrition as a diarrhea diet. Antibiotics should not be used in viral diarrhea.

Intravenous fluid support may be required in children who vomit continuously and are thought to have excessive fluid loss accompanied by fatigue. Breastfeeding should be continued if possible. Foods containing high amounts of sugar should be avoided.

Prevention Methods

The best prevention methods are breastfeeding for small babies, hand hygiene and vaccination, especially for rotavirus infections.

When Should You Consult a Doctor?

If the child has frequent vomiting, profuse watery diarrhea, dryness in the mouth and skin, fatigue, inability to take fluids, decreased urine output, high fever, bloody stool or a marked deterioration in general condition, medical evaluation is required without delay.

Frequently Asked Questions

What complaints does rotavirus cause in children?
Rotavirus infection may appear in children with sudden-onset fever, vomiting and profuse watery diarrhea. Excessive vomiting and diarrhea may cause fluid and salt balance disturbances.
In which environments is adenovirus diarrhea more common?
Diarrhea associated with adenovirus infection can generally cause outbreaks in childcare centers, hospitals and kindergartens. There is no seasonal relationship, and it can occur throughout the year.
How are rotavirus and adenovirus transmitted?
Transmission generally occurs through infected water or food, hands contaminated with stool, various objects and toys, by direct or indirect person-to-person contact.
Are antibiotics used in viral diarrhea?
Antibiotics should not be used in viral diarrhea. The basis of treatment is to correct fluid loss and salt imbalance in the body and to arrange nutrition appropriately.
Should breastfeeding continue in a baby with diarrhea?
Breastfeeding should be continued if possible. Nutrition and fluid support should be evaluated by the physician according to the child’s condition.
What are the most effective ways to prevent rotavirus?
The best prevention methods are breastfeeding for small babies, hand hygiene and vaccination, especially for rotavirus infections.

References

Academic Hospital note: If your child has complaints such as vomiting, diarrhea, fever, fatigue, dry mouth or inability to take fluids, you can book an appointment for specialist evaluation.