Instructions: Identify the Following Terms

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The Answer is Influenza, commonly known as the flu, is a highly contagious viral infection that affects the respiratory system, including the nose, throat, and lungs. It is caused by influenza viruses and is characterized by symptoms such as fever, cough, sore throat, runny or stuffy nose, muscle or body aches, headaches, and fatigue. Some individuals, especially those with weakened immune systems, older adults, and young children, may experience severe illness or complications such as pneumonia, which can be life-threatening.

Influenza spreads easily from person to person through droplets produced when an infected person coughs, sneezes, or talks. It can also be transmitted by touching surfaces contaminated with the virus and then touching the mouth, nose, or eyes.

There are several types of influenza viruses, categorized into types A, B, C, and D. Human influenza A and B viruses cause seasonal epidemics almost every winter in the United States. The influenza A virus can be further divided into subtypes based on the combination of two proteins on the surface of the virus: hemagglutinin (H) and neuraminidase (N). For example, the H1N1 and H3N2 subtypes have been associated with significant flu outbreaks in the past.

Prevention of influenza includes annual vaccination, which is recommended for most people over the age of six months, especially those at high risk for complications. Good hygiene practices, such as frequent handwashing and covering the mouth and nose when coughing or sneezing, can also help prevent the spread of the flu.

Antiviral medications may be prescribed to treat influenza, and they are most effective when taken shortly after the onset of symptoms. These medications can lessen the severity and duration of the illness and may help prevent serious complications.

Instructions: Identify the Following Terms

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