worldofviruses
Original Title: 3D Influenza_black_key_pieslice.jpg
2009
Douglas Jordan
This picture provides a 3D graphical representation of a generic influenza virion’s ultrastructure, and is not specific to a seasonal, avian or 2009 H1N1 virus. In this particular view, a portion of the virion’s protein coat, or “capsid”, has been cut away, revealing its inner nucleic acid core proteins. Note the key to the right identifying the virion’s protein constituents. For a fully intact, complete view of this virus, see PHIL 11829.There are three types of influenza viruses: A, B and C. Human influenza A and B viruses cause seasonal epidemics of disease almost every winter in the United States. The emergence of a new and very different influenza virus to infect people can cause an influenza pandemic. Influenza type C infections cause a mild respiratory illness and are not thought to cause epidemics.
Influenza A viruses are divided into subtypes based on two proteins on the surface of the virus: the hemagglutinin (H), and the neuraminidase (N). There are 16 different hemagglutinin subtypes and 9 different neuraminidase subtypes. Influenza A viruses can be further broken down into different strains. Current subtypes of influenza A viruses found in people are influenza A (H1N1) and influenza A (H3N2) viruses. In the spring of 2009, a new influenza A (H1N1) virus emerged to cause illness in people. This virus was very different from regular human influenza A (H1N1) viruses and the new virus has caused an influenza pandemic.Influenza B viruses are not divided into subtypes. Influenza B viruses also can be further broken down into different strains.
This picture provides a 3D graphical representation of the biology and structure of a generic influenza virus. This image is not specific to a seasonal, avian or 2009 H1N1 virus. The graphic depicts an influenza virus with a pie slice cut out to show the inside of the virus. The graphic is featured in front of a blue background and contains a key to describe the biological features of the virus.
Original Title: 3D Influenza_black_key_pieslice.jpg
2009
Douglas Jordan
This picture provides a 3D graphical representation of a generic influenza virion’s ultrastructure, and is not specific to a seasonal, avian or 2009 H1N1 virus. In this particular view, a portion of the virion’s protein coat, or “capsid”, has been cut away, revealing its inner nucleic acid core proteins. Note the key to the right identifying the virion’s protein constituents. For a fully intact, complete view of this virus, see PHIL 11829.There are three types of influenza viruses: A, B and C. Human influenza A and B viruses cause seasonal epidemics of disease almost every winter in the United States. The emergence of a new and very different influenza virus to infect people can cause an influenza pandemic. Influenza type C infections cause a mild respiratory illness and are not thought to cause epidemics.
Influenza A viruses are divided into subtypes based on two proteins on the surface of the virus: the hemagglutinin (H), and the neuraminidase (N). There are 16 different hemagglutinin subtypes and 9 different neuraminidase subtypes. Influenza A viruses can be further broken down into different strains. Current subtypes of influenza A viruses found in people are influenza A (H1N1) and influenza A (H3N2) viruses. In the spring of 2009, a new influenza A (H1N1) virus emerged to cause illness in people. This virus was very different from regular human influenza A (H1N1) viruses and the new virus has caused an influenza pandemic.Influenza B viruses are not divided into subtypes. Influenza B viruses also can be further broken down into different strains.
This picture provides a 3D graphical representation of the biology and structure of a generic influenza virus. This image is not specific to a seasonal, avian or 2009 H1N1 virus. The graphic depicts an influenza virus with a pie slice cut out to show the inside of the virus. The graphic is featured in front of a blue background and contains a key to describe the biological features of the virus.