What flu was around in 2012?
What flu was around in 2012?
Over the course of the entire 2012–2013 season, influenza A (H3N2) viruses predominated nationally, followed by influenza B viruses; 2009 influenza A (H1N1) viruses were identified less frequently. Influenza A viruses predominated until the end of February 2013, after which influenza B viruses were detected more often.
How many cases of flu were there in 2012?
The overall burden of influenza for the 2012-2013 season was an estimated 34 million influenza illnesses, 16 million influenza-associated medical visits, 571,000 influenza-related hospitalizations, and 43,000 flu-associated deaths (Estimated Influenza Disease Burden, by Season — United States, 2010-11 through 2017-18 …
What flu was going around in 2011?
During the 2011-2012 season, influenza A (H3N2), 2009 influenza A (H1N1), and influenza B viruses co-circulated in the United States. Over the course of the season, predominant viruses varied from region to region and between states, but nationally, influenza A (H3N2) influenza viruses predominated.
How many died from the flu in 2011?
The overall burden of influenza for the 2011-2012 season was an estimated 9 million influenza illnesses, 4 million influenza-associated medical visits, 140,000 influenza-related hospitalizations, and 12,000 flu-associated deaths (Table: Estimated Influenza Disease Burden, by Season — United States, 2010-11 through 2017 …
What was in the 2012 flu vaccine?
The 2012-2013 seasonal influenza vaccine contains A/California/7/2009 (H1N1)-like, A/Victoria/361/2011 (H3N2)-like, and B/Wisconsin/1/2010-like (Yamagata lineage) antigens, which differ from the 2011-2012 vaccine.
Was there a virus in 2011?
Influenza A H3N2 variant viruses (also known as “H3N2v” viruses) with the matrix (M) gene from the 2009 H1N1 pandemic virus were first detected in people in July 2011. The viruses were first identified in U.S. pigs in 2010. During 2011, 12 human infections with H3N2v were detected.