The H1N1 flu, also known as swine flu, is a type of influenza A virus that began affecting humans in the 2009-10 flu season. This virus is a mix of strains that can infect pigs, birds, and humans. The World Health Organization (WHO) declared it a pandemic in 2009, resulting in around 284,400 deaths worldwide. By August 2010, the pandemic was declared over, but the H1N1 strain became part of the seasonal flu.
Most people recover from the flu on their own, but it can be serious, especially for high-risk groups. A seasonal flu vaccine can help protect against H1N1 and other flu viruses. Common symptoms include fever, body aches, cough, sore throat, runny nose, headache, and gastrointestinal issues, with some symptoms being more common in children.
Certain factors increase the risk of severe illness from H1N1, such as being under 2 or over 65 years old, living in crowded conditions like nursing homes, having a weakened immune system, having chronic illnesses, being American Indian or Alaska Native, using aspirin if under 19, being pregnant, and obesity.
To prevent H1N1, it's important to avoid close contact with sick individuals, stay home when ill, avoid large gatherings, cover your mouth when sneezing or coughing, and wash hands frequently.
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