How is the H1N1 virus diagnosed?

Most rapid tests cannot distinguish which influenza virus is responsible for the illness. And,; Influenza tests can occasionally give false positive and false negative results so it's possible that one of the test results were incorrect. This is more likely to happen when the diagnosis is made with the rapid flu tests. read more

The H1N1 virus that caused that pandemic is now a regular human flu virus and continues to circulate seasonally worldwide. The English language content on this website is being archived for historic and reference purposes only. read more

CDC: "Influenza: The Disease," "H1N1 Flu (Swine Flu) and You," "Antiviral Drugs and H1N1 Flu (Swine Flu)," "Interim Guidance for Clinicians on Identifying and Caring for Patients with Swine-origin Influenza A (H1N1) Virus Infection." World Health Organization: "Vaccines for the new influenza A (H1N1)." Flu.gov. read more

H1N1 Flu: Introduction. The H1N1 flu, most accurately called the novel H1N1 influenza, is an infection of the respiratory tract, including the nose, throat, bronchial tubes and lungs. The H1N1flu is caused by the novel H1N1 virus and is highly contagious. It is the cause of the 2009 global influenza pandemic. read more