title: Surveillance of influenza in Finland during the 2009 pandemic, 10 May 2009 to 8 March 2010.
authors.affiliation: National Institute for Health and Welfare (THL), Helsinki, Finland.
authors.forename: O
authors.initials: O
authors.lastname: Lyytikainen
authors.forename: M
authors.initials: M
authors.lastname: Kuusi
authors.forename: M
authors.initials: M
authors.lastname: Snellman
authors.forename: Mj
authors.initials: M
authors.lastname: Virtanen
authors.forename: J
authors.initials: J
authors.lastname: Eskola
authors.forename: E
authors.initials: E
authors.lastname: Ronkko
authors.forename: N
authors.initials: N
authors.lastname: Ikonen
authors.forename: I
authors.initials: I
authors.lastname: Julkunen
authors.forename: T
authors.initials: T
authors.lastname: Ziegler
authors.forename: P
authors.initials: P
authors.lastname: Ruutu
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D005260:Female; D005387:Finland / Q000453:epidemiology; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D053118:Influenza A Virus, H1N1 Subtype / Q000302:isolation & purification*; D007251:Influenza, Human / Q000453:epidemiology* / Q000401:mortality / Q000821:virology*; D008297:Male; D008875:Middle Aged; D009017:Morbidity; D058873:Pandemics; D011159:Population Surveillance / Q000379:methods*; D012307:Risk Factors; D012621:Seasons; D017678:Sex Distribution; D055815:Young Adult