title: Update: Influenza Activity--United States, October 4, 2015-February 6, 2016.
abstract: From October through mid-December 2015, influenza activity remained low in most regions of the United States. Activity began to increase in late December 2015 and continued to increase slowly through early February 2016. Influenza A viruses have been most frequently identified, with influenza A (H3N2) viruses predominating during October until early December, and influenza A (H1N1)pdm09 viruses predominating from mid-December until early February. Most of the influenza viruses characterized during that time are antigenically similar to vaccine virus strains recommended for inclusion in the 2015-16 Northern Hemisphere vaccines. This report summarizes U.S. influenza activity* during October 4, 2015-February 6, 2016, and updates the previous summary (1).
authors.forename: Kate
authors.initials: K
authors.lastname: Russell
authors.forename: Lenee
authors.initials: L
authors.lastname: Blanton
authors.forename: Krista
authors.initials: K
authors.lastname: Kniss
authors.forename: Desiree
authors.initials: D
authors.lastname: Mustaquim
authors.forename: Sophie
authors.initials: S
authors.lastname: Smith
authors.forename: Jessica
authors.initials: J
authors.lastname: Cohen
authors.forename: Shikha
authors.initials: S
authors.lastname: Garg
authors.forename: Brendan
authors.initials: B
authors.lastname: Flannery
authors.forename: Alicia M
authors.initials: AM
authors.lastname: Fry
authors.forename: Lisa A
authors.initials: LA
authors.lastname: Grohskopf
authors.forename: Joseph
authors.initials: J
authors.lastname: Bresee
authors.forename: Teresa
authors.initials: T
authors.lastname: Wallis
authors.forename: Wendy
authors.initials: W
authors.lastname: Sessions
authors.forename: Rebecca
authors.initials: R
authors.lastname: Garten
authors.forename: Xiyan
authors.initials: X
authors.lastname: Xu
authors.forename: Anwar Isa Abd
authors.initials: AI
authors.lastname: Elal
authors.forename: Larisa
authors.initials: L
authors.lastname: Gubareva
authors.forename: John
authors.initials: J
authors.lastname: Barnes
authors.forename: David E
authors.initials: DE
authors.lastname: Wentworth
authors.forename: Erin
authors.initials: E
authors.lastname: Burns
authors.forename: Jacqueline
authors.initials: J
authors.lastname: Katz
authors.forename: Daniel
authors.initials: D
authors.lastname: Jernigan
authors.forename: Lynnette
authors.initials: L
authors.lastname: Brammer
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000998:Antiviral Agents / Q000494:pharmacology; D002648:Child; D046688:Child Mortality; D002675:Child, Preschool; D024882:Drug Resistance, Viral; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D053118:Influenza A Virus, H1N1 Subtype / Q000187:drug effects / Q000235:genetics / Q000302:isolation & purification*; D053122:Influenza A Virus, H3N2 Subtype / Q000187:drug effects / Q000235:genetics / Q000302:isolation & purification*; D009981:Influenza B virus / Q000187:drug effects / Q000235:genetics / Q000302:isolation & purification*; D007251:Influenza, Human / Q000453:epidemiology* / Q000401:mortality / Q000821:virology; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000401:mortality; D011159:Population Surveillance; D011247:Pregnancy; D012621:Seasons; D014481:United States / Q000453:epidemiology; D055815:Young Adult
chemical_list: D000998:Antiviral Agents