H3N2
Understanding H3N2
What is H3N2?
The H3N2 test is used to detect the genetic material of the H3N2 strain of influenza (flu) virus in the respiratory samples. The test helps doctors diagnose H3N2 flu infections and guide treatment decisions.
The H3N2 influenza virus is a subtype of the influenza A virus, which commonly causes seasonal flu in humans. H3N2 test helps diagnose H3N2 flu infections, which can range from mild respiratory symptoms to severe respiratory illness and complications such as pneumonia.
H3N2 test helps confirm whether an individual's symptoms are indeed caused by the H3N2 strain of influenza A virus or another respiratory pathogen as H3N2 infection causes symptoms similar to other viral flu-like illnesses.
The signs and symptoms of H3N2 infection vary by age, underlying health conditions, and immune function. However, your doctor may suggest H3N2 test when you have symptoms such as cough, sore throat, runny nose, nasal congestion, headache, and low-grade fever indicative of flu or a similar respiratory illness. The time from when a person is exposed and infected with flu to when symptoms begin is about 2 days but can range from about 1 to 4 days. Therefore, get tested with H3N2 test as soon as the symptoms appear.
No special preparation is required for this test. You can eat and drink normally as per your routine.
Test results may vary depending on your age, gender, health history, and other things. Your test results may be different depending on the lab used. Abnormal test results require an expert interpretation, therefore, never try to self-medicate at home based solely on these results, and always consult a doctor for a proper understanding of the test results.
The best way to prevent influenza is to follow preventive measures including washing your hands frequently, avoiding close contact with sick individuals, and staying home when you are sick.
What is H3N2 used for?
The H3N2 test is done:
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To confirm whether an individual has been infected with the H3N2 virus
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As a part of the viral flu panel, particularly in the flu season
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When someone experiences symptoms such as fever, chills, sore throat, runny nose, body ache, or cough suggestive of viral infection
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To help doctors differentiate between the swine flu and other influenza infections.
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To identify H3N2 infection in vulnerable populations, such as young children, older adults, pregnant women and individuals with underlying health conditions
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To monitor treatment response against H3N2 Infection
What does H3N2 measure?
H3N2 checks for the presence of H3N2 virus and confirms the infection. The influenza A virus has a subtype known as H3N2, which can induce sickness in humans and animals such as pigs and birds. This particular strain of the flu virus is capable of causing illness. During the testing process, respiratory specimens such as nasopharyngeal swabs or nasal washes are analyzed to detect viral RNA or antigens.
Other tests
