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Rotavirus Antigen, Stool

Also referred as

Rotavirus Ag

Qualitative Immunochromatographic (ICT) test

Rotavirus Antigen

Feces

For men & women

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The Rotavirus Antigen, Stool test helps detect the presence of rotavirus in stool samples. Rotavirus is a leading cause of severe diarrhea and dehydration in infants and young children. This test helps in the early detection of ongoing rotavirus infections.

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Understanding Rotavirus Antigen, Stool

Rotavirus is a common cause of stomach infections in young children, leading to symptoms like severe diarrhea, vomiting, and dehydration. It spreads easily through contact with fecal-oral routes, often through contaminated food, water, or surfaces that may come into contact with fecal matter. While most individuals recover on their own, rotavirus can be more dangerous for infants and people with weak immune systems, sometimes requiring hospital care due to the risk of severe dehydration.

The Rotavirus Antigen, Stool test detects the specific antigens (proteins) released by the rotavirus in stool samples. These proteins are present during the early stage of the infection, making the test useful for diagnosing rotavirus before the body starts producing antibodies.

The Rotavirus Antigen, Stool test is recommended for young children showing signs and symptoms like watery diarrhea, vomiting, fever, and stomach pain. It is also helpful in distinguishing rotavirus from other causes of gastrointestinal symptoms, which may require different management strategies. The insights of the Rotavirus Antigen, Stool test results allow doctors to determine the best course of treatment and assess the need for rehydration therapy.

For this test, collect a fresh stool sample in a clean, sterile, leak-proof screw-capped container, preferably one with a spoon. Only a small portion of about 5–10 grams (1–2 teaspoons) is needed, so avoid overfilling the container. Do not use matchboxes, paper, or other absorbent materials for collection. Also, ensure the sample is not contaminated with urine or water. Also, inform the doctor about all the medications or supplements being taken, as some of them can affect the test results.

Lab test results may vary across laboratories. Do not self-medicate. Always consult the doctor to understand the test results correctly. The insights from Rotavirus Antigen, Stool test will help doctors formulate an overall treatment plan. Although maintaining good hygiene by washing hands thoroughly, eating hygienically prepared food, and drinking water from a safe, clean source are some ways to prevent rotavirus infection, particularly in children.

Please note: This is an outsourced test. The sample is collected by TATA 1MG and processed at a NABL accredited partnered lab.

What does Rotavirus Antigen, Stool measure?

The Rotavirus Antigen, Stool is a qualitative rapid immunochromatographic test that measures the presence of rotavirus antigens in the stool, which are produced by the virus during active infection. After being exposed to rotavirus, the virus infects the intestines and releases these antigens, which can be found in the stool during the infection. This test is useful for diagnosing rotavirus early in the illness.

A positive result means the individual is currently infected with rotavirus, and timely intervention can help manage symptoms and prevent complications like dehydration.

Conversely, a negative result helps rule out rotavirus as the cause of the symptoms, guiding the search for other pathogens. Early detection plays a significant role in reducing hospitalizations and ensuring the proper treatment of affected children, particularly in areas where rotavirus remains a major cause of illness.

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FAQs related to Rotavirus Antigen, Stool

What is the Rotavirus Antigen, Stool test?

The Rotavirus Antigen, Stool test is a diagnostic test used to detect the presence of rotavirus antigens in a stool sample. It helps diagnose rotavirus infections, which commonly cause severe diarrhea and vomiting in infants and young children.

Why is the Rotavirus Antigen, Stool test done?

This test is done to diagnose an active rotavirus infection in individuals, particularly young children, who are showing symptoms like diarrhea, vomiting, and fever. It also helps differentiate rotavirus from other causes of gastroenteritis.

How is the Rotavirus Antigen, Stool test performed?

The test is performed by collecting a stool sample from the patient. This sample is then analyzed in a laboratory to detect the presence of rotavirus antigens, which are proteins released by the virus during active infection.

Do I need to prepare for the test?

No special preparation is needed. Simply collect a fresh stool sample (5–10 g) in the sterile, leak-proof container provided by the lab, avoiding overfilling or contamination with urine or water. Do not use paper, matchboxes, or other absorbent materials for collection.

What does a positive result mean?

A positive result indicates that rotavirus is present in the stool sample, confirming an active infection. This suggests the individual has rotavirus gastroenteritis, which needs timely treatment, like rehydration, to prevent complications such as dehydration.

What does a negative result mean?

A negative result means that no rotavirus antigens were detected in the stool sample. This helps rule out rotavirus as the cause of the symptoms, but further testing may be needed to identify other pathogens responsible for the gastroenteritis.

Is fasting required before the test?

No, fasting is not required before the Rotavirus Antigen, Stool test. The test only requires a stool sample and can be performed without any special preparation. However, use the sample collection container provided by the laboratory personnel and ensure that the sample does not get contaminated with urine, water, or other substances.

Can adults be tested for rotavirus?

While rotavirus infections are most common in infants and young children, adults can also get infected, especially if they have weakened immune systems. However, the test is typically used in children, as they are most at risk for severe symptoms from the virus.

How is rotavirus spread?

Rotavirus is primarily spread through the fecal-oral route, where the virus is shed in the stool of infected individuals. It can spread through contaminated hands, surfaces, water, or food. Close contact with infected people increases the chance of spreading the infection.

Can rotavirus infection be prevented?

Yes, rotavirus infections can be prevented through vaccination. The rotavirus vaccine, given to infants in a series of doses, significantly reduces the risk of severe rotavirus infection and related complications. However, the vaccine does not prevent diarrhea or vomiting caused by other pathogens. Additionally, good hygiene practices, such as frequent handwashing and sanitizing surfaces, also help reduce the spread of the virus.

Can an individual get rotavirus more than once?

Yes, it is possible to get infected with rotavirus more than once, although the symptoms tend to be less severe after the first infection. Immunity to the virus typically develops after an infection, but it may not be lifelong.

How can I reduce the risk of my child getting rotavirus?

To lower the risk of rotavirus infection in children, make sure they get the recommended vaccination on time. Also, teach them to wash their hands properly, clean toys and surfaces often, and avoid contact with infected individuals.

Can rotavirus affect my child even if they’ve been vaccinated?

While the rotavirus vaccine greatly reduces the risk of severe illness, it does not provide 100% protection. In some cases, vaccinated children can still get infected with rotavirus, but the symptoms are usually much milder and the risk of complications is lower.

How can I prevent dehydration during a rotavirus infection?

Prevention of dehydration starts with ensuring adequate fluid intake. The most effective method for rehydration is the Oral Rehydration Solution (ORS), which contains the right balance of salts and sugars to replace lost fluids and electrolytes.

How does Tata 1mg ensure accurate lab test results?

Tata 1mg ensures accurate lab test results through certified laboratories that use advanced technology and adhere to stringent quality control measures. This commitment to high standards guarantees reliable results.

Content created by

Dr. Swati Gupta (Anand)

MBBS, MD Lab Medicine

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Last Updated

12th Oct 2025