What is Influenza A virus?

Generally, the A-type influenza virus, also known as influenza A virus, is a single-stranded RNA virus. Detailed analysis is as follows:

The A-type influenza virus, also known as influenza A virus, belongs to the Orthomyxoviridae family and is the sole species within the genus Influenzavirus A. It is an RNA virus whose viral particles are spherical or filamentous in shape. The A-type influenza virus includes multiple subtypes that can infect various mammalian species, including wild birds, domestic poultry, pigs, horses, and humans, causing influenza.

The A-type influenza virus mutates easily, making it difficult for the human body to develop long-lasting immunity. Influenza caused by A-type influenza virus usually presents more severe symptoms than the common cold, including high fever, headache, muscle pain, and fatigue. It can be particularly severe among elderly individuals, children, pregnant women, and people with chronic diseases who have weaker immune systems.

In daily life, one should develop the habit of washing hands frequently and avoid touching the mouth, nose, and face with hands.