- Analysis of influenza virus isolates in 2010/11 season
- Prevalence of influenza antibody positives among population before the 2010/11 season—2010 NESVPD
- Selection of the 2011/12 season influenza HA vaccine strain in Japan
- Isolation of influenza viruses from fecal specimens, 2009/10-2010/11 seasons—Yokohama City
- Double infection with influenza AH3 and B that occurred in 2010/11 season—Saitama
- Amendment of the Preventive Vaccination Law: introduction of a new extra immunization scheme preparing for the situation like influenza A(H1N1)pdm09, October, 2011—MHLW
- Updating of the measures to be taken against pandemic influenza, September 20, 2011—MHLW
- Notice: On surveillance of influenza among hospitalized patients—MHLW
- The first isolation of influenza AH3 viruses from an outbreak among adults in 2011/12 season—Yokohama City
- The first influenza AH3 outbreak in 2011/12 season in a kindergarten—Yamaguchi
- Isolation of influenza AH3 viruses from outbreaks involving a primary school and a kindergarten, October 2011—Mie
- The first influenza B outbreak in 2011/12 season in a primary school—Ibaraki
- Large epidemic of mycoplasmal pneumonia caused by Mycoplasma pneumoniae strains highly resistant to macrolides among children in 2011
- Detection of coxsackievirus A6 from nails detached from fingers after recovery from hand, foot and mouth disease, June 2011—Wakayama
- Pertussis epidemic among the primary and secondary school children in 2010—Edogawa-ku, Tokyo
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