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Flu

Eric Weaver, an associate professor of biological sciences at the University of Nebraska–Lincoln has received a five-year, $3.2 million grant from the National Institutes of Health’s National Institute of Allergy and Infectious Diseases to interrogate the tobacco mosaic virus as a possible catalyst for developing a universal flu vaccine. July 29, 2020. Photo by Craig Chandler / University Communication.

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Eric Weaver, an associate professor of biological sciences at the University of Nebraska–Lincoln has received a five-year, $3.2 million grant from the National Institutes of Health’s National Institute of Allergy and Infectious Diseases to interrogate the tobacco mosaic virus as a possible catalyst for developing a universal flu vaccine. July 29, 2020. Photo by Craig Chandler / University Communication.

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Eric Weaver, an associate professor of biological sciences at the University of Nebraska–Lincoln has received a five-year, $3.2 million grant from the National Institutes of Health’s National Institute of Allergy and Infectious Diseases to interrogate the tobacco mosaic virus as a possible catalyst for developing a universal flu vaccine. July 29, 2020. Photo by Craig Chandler / University Communication.

200729 Weaver 054

Eric Weaver, an associate professor of biological sciences at the University of Nebraska–Lincoln has received a five-year, $3.2 million grant from the National Institutes of Health’s National Institute of Allergy and Infectious Diseases to interrogate the tobacco mosaic virus as a possible catalyst for developing a universal flu vaccine. July 29, 2020. Photo by Craig Chandler / University Communication.

200729 Weaver 040

Eric Weaver, an associate professor of biological sciences at the University of Nebraska–Lincoln has received a five-year, $3.2 million grant from the National Institutes of Health’s National Institute of Allergy and Infectious Diseases to interrogate the tobacco mosaic virus as a possible catalyst for developing a universal flu vaccine. July 29, 2020. Photo by Craig Chandler / University Communication.

200729 Weaver 018

Content Provider: CDC/Douglas Jordan 2009
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. See PHIL 11822 for a view of this virus in which a portion of the virion’s protein coat, or “capsid”, has been cut away, revealing its inner nucleic acid core proteins, as well as a key identifying the organism’s protein constituents.<p></b>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.<p>Influenza B viruses are not divided into subtypes. Influenza B viruses also can be further broken down into different strains.

190401 Influenza11823 CDC Dan Higgins Orig

Influenza Vaccines, Virology research. February 26, 2019. Photo by Craig Chandler / University Communication.

Influenza Vaccines, Virology research. February 26, 2019. Photo by Craig Chandler / University Communication.

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Influenza Vaccines, Virology research. February 26, 2019. Photo by Craig Chandler / University Communication.

Influenza Vaccines, Virology research. February 26, 2019. Photo by Craig Chandler / University Communication.

Influenza Vaccines, Virology research. February 26, 2019. Photo by Craig Chandler / University Communication.

Influenza Vaccines, Virology research. February 26, 2019. Photo by Craig Chandler / University Communication.

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Influenza Vaccines, Virology research. February 26, 2019. Photo by Craig Chandler / University Communication.

Josh Gasper, UNMC nursing student, gives a flu shot. Influenza Vaccines. Virology research. February 26, 2019. Photo by Craig Chandler / University Communication.

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All photos are available to UNL departments at no charge. Email the titles of the photos to Craig Chandler or Monica Myers.

cchandler2@unl.edu
mmyers2@unl.edu

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