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Influenza Due to Identified Novel Influenza A Virus: Causes, Symptoms, and Prevention

Influenza is a highly contagious viral infection that affects millions of people worldwide every year. The virus can cause mild to severe respiratory illness, and in some cases, it can lead to hospitalization and even death. Influenza is caused by different types of influenza viruses, including influenza A, B, and C. Influenza A viruses are further classified into subtypes based on two proteins on the surface of the virus: hemagglutinin (H) and neuraminidase (N).

Influenza A viruses can undergo genetic changes, known as antigenic drift and antigenic shift, which can result in the emergence of new strains of the virus. When a new strain of influenza A virus emerges, it can cause a pandemic if it spreads easily from person to person and if people have little or no immunity to the new strain. In 2009, a novel strain of influenza A virus, H1N1, caused a pandemic that affected millions of people worldwide.

Causes and Symptoms

Influenza due to identified novel influenza A virus is caused by a new strain of the virus that people have little or no immunity to. The symptoms of influenza due to identified novel influenza A virus are similar to those of seasonal influenza and can include:

1. Fever
2. Cough
3. Sore throat
4. Body aches
5. Fatigue
6. Headache
7. Chills
8. Runny or stuffy nose

In some cases, influenza due to identified novel influenza A virus can cause severe respiratory illness, pneumonia, and even death.

Prevention

The best way to prevent influenza due to identified novel influenza A virus is to get vaccinated. The influenza vaccine is updated every year to protect against the strains of influenza viruses that are expected to be most common during the upcoming flu season. The vaccine can reduce the risk of getting influenza and can also reduce the severity of illness if you do get sick.

In addition to getting vaccinated, you can take other steps to prevent the spread of influenza due to identified novel influenza A virus, including:

• Washing your hands frequently with soap and water or using alcohol-based hand sanitizer
• Covering your mouth and nose with a tissue when you cough or sneeze
• Avoiding close contact with people who are sick
• Staying home from work or school if you are sick

Diagnosis Codes for Influenza due to identified novel influenza A virus | J09.X

• J09.X1, Influenza due to identified novel influenza A virus with pneumonia
• J09.X2, Influenza due to identified novel influenza A virus with other respiratory manifestations
• J09.X3, Influenza due to identified novel influenza A virus with gastrointestinal manifestations
• J09.X9, Influenza due to identified novel influenza A virus with other manifestations

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