Swine flu (Influenza virus A/H1N1, sw2009), RNA [Real-time PCR]

Influenza is an acute respiratory infection caused by RNA-containing viruses belonging to the genus Influenza virus of the Orthomyxoviridae family. Based on the type of one of the proteins included in the viral particle, influenza viruses are divided into three main serotypes: A, B, and C. Influenza virus strains are also distinguished, usually designated according to the geographical area where a particular virus strain was first isolated, and the year of detection (for example, A/H1N1/CA2009 means that the strain of the A/H1N1 type virus was first isolated in California in 2009).
Swine flu represents several subtypes of influenza A virus capable of causing disease in pigs. Currently, the A/H1N1 subtype is the most relevant in terms of epidemiological vigilance. Symptoms of influenza caused by the above virus are similar to seasonal flu (fever, cough, sore throat, headache, muscle pain, weakness; nausea, vomiting, and/or diarrhea may also be observed). It should be noted that in most cases the above symptoms disappear within a week, but in severe cases of infection, rapidly progressive pneumonia often develops, which, in the absence of proper treatment, can lead to a fatal outcome within 24 hours. The disease most often proceeds in a severe form in children under 2 years of age, people with chronic diseases of the respiratory system, the elderly, pregnant women, and persons suffering from obesity. Dangerous symptoms include difficulty breathing, chest pain, blueness of the lips and earlobes, confusion, and body temperature above 38°C for 3-4 days despite taking antipyretic drugs. In children, symptoms of severe influenza vary depending on the child's age. Infants usually show rapid breathing, paleness or blueness of the skin, symptoms of dehydration (lack of tears when crying, prolonged absence of urination), persistent nausea and vomiting, severe lethargy, drowsiness or, conversely, overexcitation, convulsions. If symptoms of severe influenza are present, it is necessary to seek medical help as soon as possible.

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