IASR
- IASR English
- IASR Vol.42, No.4 (No.494), April 2021 Adenovirus infections, 2008 to 2020, Japan
- IASR 42(4), 2021【THE TOPIC OF THIS MONTH】Adenovirus infections, 2008 to 2020, Japan
- IASR Vol.42, No.3 (No.493), March 2021 Multidrug-Resistant Acinetobacter Infection
- IASR 42(3), 2021【THE TOPIC OF THIS MONTH】Multidrug-Resistant Acinetobacter Infection
- IASR Vol.42, No.2 (No.492), February 2021 COVID-19 as at December 2020
- IASR 42(2), 2021【THE TOPIC OF THIS MONTH】COVID-19 as at December 2020
- IASR Vol.42, No.1 (No.491), January 2021 Acute hepatitis C, April 2006-October 2020
- IASR 42(1), 2021【THE TOPIC OF THIS MONTH】Acute hepatitis C, April 2006-October 2020
- IASR 41(12), 2020【THE TOPIC OF THIS MONTH】Exanthema subitum 2000-2020
- IASR Vol.41, No.12 (No.490), December 2020 Exanthema subitum 2000-2020
- IASR Vol.41, No. 11 (No.489), November 2020 Influenza 2019/20 season, Japan
- IASR 41(11), 2020【THE TOPIC OF THIS MONTH】Influenza 2019/20 season, Japan
- IASR Vol.41, No.10 (No.488), October 2020 HIV/AIDS in Japan, 2019
- IASR 41(10), 2020【THE TOPIC OF THIS MONTH】HIV/AIDS in Japan, 2019
- IASR Vol.41, No. 9 (No.487), September 2020 Rubella and congenital rubella syndrome in Japan as at July 2020
- IASR 41(9), 2020【THE TOPIC OF THIS MONTH】Rubella and congenital rubella syndrome in Japan as at July 2020
- IASR Vol.41, No.8 (No.486), August 2020 Japanese spotted fever 1999-2019
- IASR Vol.41, No. 7(No.485), July 2020 COVID-19 as of May 2020
- IASR 41(7), 2020【THE TOPIC OF THIS MONTH】COVID-19 as of May 2020
- IASR 41(8), 2020【THE TOPIC OF THIS MONTH】Japanese spotted fever 1999-2019
- IASR Vol.41, No.6 (No.484), June 2020 Dengue fever and dengue hemorrhagic fever, 2015-2019
- IASR Vol.41, No.5 (No.483), May 2020 Enterohemorrhagic Escherichia coli (EHEC) infection as of March 2020 in Japan
- IASR 41(6), 2020【THE TOPIC OF THIS MONTH】Dengue fever and dengue hemorrhagic fever, 2015-2019
- IASR 41(5), 2020【THE TOPIC OF THIS MONTH】Enterohemorrhagic Escherichia coli (EHEC) infection as of March 2020 in Japan
- IASR 41(4), 2020【THE TOPIC OF THIS MONTH】Measles in Japan, as of February 2020
- IASR Vol.41, No.4 (No.482), April 2020 Measles in Japan, as of February 2020
- IASR Vol.41, No.3 (No.481), March 2020 Clostridioides difficile infection in Japan
- IASR 41(3), 2020【THE TOPIC OF THIS MONTH】Clostridioides difficile infection in Japan
- IASR Vol.41, No.2 (No.480), February 2020 Acute Flaccid Paralysis in Japan as of December 2019
- IASR 41(2), 2020【THE TOPIC OF THIS MONTH】Acute Flaccid Paralysis in Japan as of December 2019
- IASR Vol.41, No.1 (No.479), January 2020 Syphilis, Japan
- IASR Vol.40, No.12 (No.478), December 2019 Rotavirus, from September 2004 to August 2019, Japan
- IASR 40(12), 2019【THE TOPIC OF THIS MONTH】Rotavirus, from September 2004 to August 2019, Japan
- IASR 41(1), 2020【THE TOPIC OF THIS MONTH】Syphilis, Japan
- IASR Vol.40, No.11 (No.477), November 2019 Influenza 2018/19 season, Japan
- IASR 40(11), 2019【THE TOPIC OF THIS MONTH】Influenza 2018/19 season, Japan
- IASR Vol.40, No.10 (No.476), October 2019 HIV/AIDS in Japan, 2018
- IASR 40(10), 2019【THE TOPIC OF THIS MONTH】HIV/AIDS in Japan, 2018
- IASR Vol.40, No.9 (No.475), September 2019 Hepatitis A in Japan between 2015 and March 2019
- IASR 40(9), 2019【THE TOPIC OF THIS MONTH】Hepatitis A in Japan between 2015 and March 2019
- IASR Vol.40, No.8 (No.474), August 2019 Rubella and congenital rubella syndrome in Japan as of May 2019
- IASR 40(8), 2019【THE TOPIC OF THIS MONTH】Rubella and congenital rubella syndrome in Japan as of May 2019
- IASR 40(7), 2019【THE TOPIC OF THIS MONTH】Severe fever with thrombocytopenia syndrome (SFTS) in Japan, as of June 2019
- IASR Vol.40, No.7 (No.473), July 2019 : Severe fever with thrombocytopenia syndrome (SFTS) in Japan, as of June 2019
- IASR Vol.40, No. 6(No.472), June 2019 : Acute encephalitis in Japan, 2007-2018
- IASR 40(6), 2019【THE TOPIC OF THIS MONTH】Acute encephalitis in Japan, 2007-2018
- IASR 40(5), 2019【THE TOPIC OF THIS MONTH】Enterohemorrhagic Escherichia coli (EHEC) infection, as of March 2019, Japan
- IASR Vol.40, No.5 (No.471), May 2019 : Enterohemorrhagic Escherichia coli (EHEC) infection, as of March 2019, Japan
- IASR Vol.40, No. 4(No.470), April 2019 : Measles in Japan, as of February 2019
- IASR 40(4), 2019【THE TOPIC OF THIS MONTH】Measles in Japan, as of February 2019
- IASR Vol.40, No.3 (No.469), March 2019 : Echinococcosis in Japan, 1999-2018
- IASR 40(3), 2019【THE TOPIC OF THIS MONTH】Echinococcosis in Japan, 1999-2018
- IASR 40(2), 2019【THE TOPIC OF THIS MONTH】Carbapenem-resistant Enterobacteriaceae (CRE) Infection, Japan
- IASR Vol.40, No.1 (No.467), January 2019 : Pertussis in Japan, as of November 2018
- IASR 40(1), 2019【THE TOPIC OF THIS MONTH】Pertussis in Japan, as of November 2018
- IASR Vol.39, No.12 (No.466), December 2018: Respiratory syncytial virus infection, January 2014-September 2018
- IASR 39(12), 2018【TOPIC OF THIS MONTH】Respiratory syncytial virus infection, January 2014-September 2018
- IASR Vol.39, No.11 (No.465), November 2018 : Influenza 2017/18 season, Japan
- IASR 39(11), 2018【TOPIC OF THIS MONTH】Influenza 2017/18 season, Japan
- IASR Vol.39, No.10 (No.464), October 2018 : Malaria 2006-2017
- IASR 39(10), 2018【TOPIC OF THIS MONTH】Maralia, Japan, 2006-2017
- IASR 39(9), 2018【TOPIC OF THIS MONTH】HIV/AIDS in Japan, 2017
- IASR Vol.39, No.9 (No.463), September 2018 : HIV/AIDS in Japan, 2017
- IASR 39(8), 2018【TOPIC】Varicella/Herpes zoster: epidemiological trends and vaccines
- IASR Vol.39, No.8 (No.462), August 2018 : Varicella/Herpes zoster: epidemiological trends and vaccines
- IASR 39(7), 2018【TOPIC】Pneumococcal infections in 2017, Japan
- IASR Vol.39, No.7 (No.461), July 2018 : Pneumococcal infections in 2017, Japan
- IASR 39(6), 2018【TOPIC】Viruses detected form aseptic meningitis patients in Japan, through 2017
- IASR Vol.39, No.6 (No.460), June 2018 : Viruses detected from aseptic meningitis patients in Japan, through 2017
- IASR Vol.39, No.5 (No.459), May 2018 : Enterohemorrhagic Escherichia coli (EHEC) infection, as of March 2018, Japan
- IASR 39(5), 2018【TOPIC】Enterohemorrhagic Escherichia coli (EHEC) infection, as of March 2018, Japan
- IASR 39(4), 2018【TOPIC】Measles in Japan, as of February 2018
- IASR Vol.39, No.4 (No.458), April 2018 : Measles in Japan, as of February 2018
- IASR 39(3), 2018【TOPIC】Rubella and congenital rubella syndrome in Japan as of January 2018
- IASR Vol.39, No.3 (No.457), March 2018 : Rubella and congenital rubella syndrome in Japan as of January 2018
- IASR Vol.39, No.2 (No.456), February 2018 : Hansen’s disease (Leprosy)
- IASR 39(2), 2018【TOPIC】Hansen’s disease (Leprosy)
- IASR Vol.39, No.1 (No.455), January 2018 : Invasive meningococcal infection, April 2013-October 2017, Japan
- IASR 39(1), 2018【TOPIC】Invasive meningococcal infection, April 2013-October 2017, Japan
- IASR Vol.38, No.12 (No.454), December 2017 : Tuberculosis in Japan, 2016
- IASR 38(12), 2017【TOPIC】Tuberculosis in Japan, 2016
- IASR Vol.38, No.11 (No.453), November 2017 : Influenza 2016/17season, Japan
- IASR 38(11), 2017【TOPIC】Influenza 2016/17season, Japan
- IASR Vol.38, No.10 (No.452), October 2017 : Hand, foot, and mouth disease and herpangina, 2007 to September 2017 (week 38), Japan
- IASR 38(10), 2017【TOPIC】Hand, foot, and mouth disease and herpangina, 2007 to September 2017 (week 38), Japan
- IASR Vol.38, No.9 (No.451), September 2017 : HIV/AIDS in Japan, 2016
- IASR 38(9), 2017【TOPIC】HIV/AIDS in Japan, 2016
- IASR Vol.38, No.8 (No.450), August 2017 : Japanese encephalitis, Japan, 2007-2016
- IASR 38(8), 2017【TOPIC】Japanese encephalitis, Japan, 2007-2016
- IASR 38(7), 2017【TIPIC】Adenovirus infections, 2008 to June 2017, Japan
- IASR Vol.38, No.7 (No.449), July 2017 : Adenovirus infections, 2008 to June 2017, Japan
- IASR topics index-2
- IASR topics index-1
- IASR 38(6), 2017【TOPIC】Scrub typhus and Japanese spotted fever in Japan 2007-2016
- IASR Vol.38, No.6 (No.448), June 2017 : Scrub typhus and Japanese spotted fever in Japan 2007-2016
- IASR Vol.38, No.5 (No.447), May 2017 : Enterohemorrhagic Escherichia coli (EHEC) infection, as of April 2017, Japan
- IASR 38(5), 2017【TOPIC】Enterohemorrhagic Escherichia coli (EHEC) infection, as of April 2017, Japan
- IASR Vol.38, No.4 (No.446), April 2017 : Foodborne helminthiases in Japan
- IASR Vol.40, No.2 (No.468), February 2019 : Carbapenem-resistant Enterobacteriaceae (CRE) Infection, Japan
- IASR 38(4), 2017【TOPIC】Foodborne helminthiases in Japan
- IASR Vol.38, No.3 (No.445), March 2017 : Measles in Japan, 2016
- IASR 38(3), 2017【TOPIC】Measles in Japan, 2016
- IASR Vol.38, No.2 (No.444), February 2017 : Pertussis in Japan, as of January 2017
- IASR 38(2), 2017【TOPIC】Pertussis in Japan, as of January 2017
- IASR Vol.38, No.1 (No.443), January 2017 : Norovirus trends in Japan, 2015/16 season
- IASR 38(1), 2017【TOPIC】Norovirus trends in Japan, 2015/16 season
- IASR 37(12), 2016【TOPIC】Amebiasis in Japan, week 1 of 2007-week 43 of 2016
- IASR Vol.37, No.12 (No.442), December 2016 : Amebiasis in Japan, week 1 of 2007-week 43 of 2016
- IASR Vol.37, No.11 (No.441), November 2016 : Influenza 2015/16 season, Japan
- IASR 37(11), 2016【TOPIC】Influenza 2015/16 season, Japan
- IASR 37(10), 2016【TOPIC】Mumps (infectious parotitis) in Japan, as of September 2016
- IASR Vol.37, No.10 (No.440), October 2016 : Mumps (infectious parotitis) in Japan, as of September 2016
- IASR 37(9)、2016【TOPIC】HIV/AIDS in Japan, 2015
- IASR Vol.37, No.9 (No.439), September 2016 : HIV/AIDS in Japan, 2015
- IASR 37(8)、2016【TOPIC】Acute hepatitis B, April 2006-December 2015
- IASR Vol.37, No.8 (No.438), August 2016 : Acute hepatitis B, April 2006-December 2015
- IASR 37(7)、2016【Topic】Mosquito-borne viral infection: Zika virus infection, Chikungunya fever and Dengue fever, 2011 to June 2016, Japan
- IASR Vol.37, No.7 (No.437), July 2016 : Mosquito-borne viral infection: Zika virus infection, Chikungunya fever and Dengue fever, 2011 to June 2016, Japan
- Clostridium difficile surveillance in England
- IASR Vol.37, No.6 (No.436), June 2016 : Leptospirosis in Japan, January 2007-April 2016
- IASR Vol.37, No.5 (No.435), May 2016 : Enterohemorrhagic Escherichia coli infection, as of April 2016, Japan
- IASR 37(5), 2016 【Topic】Enterohemorrhagic Escherichia coli infection, as of April 2016, Japan
- IASR 37(4), 2016【Topic】Measles and Rubella/Congenital Rubella Syndrome in Japan, as of March 2016
- IASR 37(6), 2016 【Topic】Leptospirosis in Japan, January 2007-April 2016
- IASR Vol.37, No.4 (No.434), April 2016 : Measles and Rubella/Congenital Rubella Syndrome in Japan, as of March 2016
- IASR Vol.37, No.3 (No.433), March 2016 : Severe fever with thrombocytopenia syndrome (SFTS) in Japan, as of February 2016
- IASR 37(3), 2016【Topic】Severe fever with thrombocytopenia syndrome (SFTS) in Japan, as of February 2016
- IASR 37(2), 2016【Topic】Poliomyelitis as of 2016
- IASR Vol.37, No.2 (No.432), February 2016 : Poliomyelitis as of 2016
- IASR 37(1), 2016【Topic】Erythema infectiosum (Human parvovirus B19 infection)
- IASR Vol.37, No.1 (No.431), January 2016 : Erythema infectiosum (Human parvovirus B19 infection)
- IASR Vol.36, No.12 (No.430), December 2015 : Middle East Respiratory Syndrome (MERS), as of November 2015
- IASR 36(12), 2015【Topic】Middle East Respiratory Syndrome (MERS), as of November 2015
- IASR Vol.36, No.11 (No.429), November 2015 : Influenza 2014/15 season, Japan
- IASR 36(11), 2015【Topic】Influenza 2014/15 season, Japan
- IASR 36(10), 2015【Topic】Disseminated cryptococcal infection in Japan (2014 Week 39-2015 Week 37)
- IASR Vol.36, No.10 (No.428), October 2015 : Disseminated cryptococcal infection in Japan (2014 Week 39-2015 Week 37)
- IASR Vol.36, No.9 (No.427), September 2015 : HIV/AIDS in Japan, 2014
- IASR 36(9), 2015【Topic】HIV/AIDS in Japan, 2014
- IASR 36(8), 2015【Topic】Streptococcal Infections in Japan, 2012-2015, as of June 2015
- IASR Vol.36, No.8 (No.426), August 2015 : Streptococcal Infections in Japan, 2012-2015, as of June 2015
- IASR Vol.36, No.7 (No.425), July 2015 : Rubella and Congenital Rubella Syndrome in Japan, as of June 2015
- IASR 36(7), 2015【Topic】Rubella and Congenital Rubella Syndrome in Japan, as of June 2015
- Notifiable diseases of the Infectious Diseases Control Law revised on May 21, 2015
- IASR 36(6), 2015【Topic】Ebola hemorrhagic fever in West Africa, as of May 2015
- IASR Vol.36, No.6 (No.424), June 2015 : Ebola hemorrhagic fever in West Africa, as of May 2015
- IASR Vol.36, No.5 (No.423), May 2015 : Enterohemorrhagic Escherichia coli infection as of April 2015
- Clinical manifestations associated with EHEC infection, by serotype in Japan, 2014
- IASR 36(5), 2015【Topic】Enterohemorrhagic Escherichia coli infection as of April 2015
- IASR Vol.36, No.4 (No.422), April 2015 : Measles in Japan, as of March 2015
- IASR 36(4), 2015【Topic】Measles in Japan, as of March 2015
- IASR Virus [Table Archives]
- IASR Vol.36, No.3 (No.421), March2015 : Dengue fever and dengue hemorrhagic fever, 2011-2014
- IASR 36(3), 2015【Topic】Dengue fever and dengue hemorrhagic fever, 2011-2014
- IASR Vol.36, No.2 (No.420), February 2015 : Syphilis 2008-2014
- IASR 36(2), 2015【Topic】Syphilis 2008-2014
- IASR Vol.35, No.11 (No.417), November 2014 : 2013/14 influenza season, Japan
- IASR 36(1), 2015【Topic】Hepatitis A in Japan, 2010-2014, as of November 2014
- IASR Vol.35, No.12 (No.418), December 2014 : Carbapenem-resistant Enterobacteriaceae Infection, Japan
- IASR 35(12), 2014【Topic】Carbapenem-resistant Enterobacteriaceae Infection, Japan
- IASR Vol.36, No.1 (No.419), January 2015 : Hepatitis A in Japan, 2010-2014, as of November 2014
- IASR 35(11), 2014【Topic】2013/14 influenza season, Japan
- IASR Vol.35, No.10 (No.416), October 2014 : Invasive Haemophilus influenzae and Streptococcus pneumoniae infections, as of August 2014
- IASR 35(10), 2014【Topic】Invasive Haemophilus influenzae and Streptococcus pneumoniae infections, as of August 2014
- IASR Vol.35, No.9 (No.415), September 2014 : HIV/AIDS in Japan, 2013
- IASR 35(9), 2014【Topic】HIV/AIDS in Japan, 2013
- IASR Vol.35, No.8 (No.414), August 2014 : Cryptosporidiosis and Giardiasis as of July 2014
- IASR 35(8), 2014【Topic】Cryptosporidiosis and Giardiasis as of July 2014
- IASR Vol.35, No.7 (No.413), July 2014 : Epidemiology of Norovirus in Japan, 2010/11-2013/14 seasons
- IASR 35(7), 2014【Topic】Epidemiology of Norovirus in Japan, 2010/11-2013/14 seasons
- IASR 35(6), 2014【Topic】Respiratory syncytial virus infection, as of May 2014
- IASR Vol.35, No.6 (No.412), June 2014 : Respiratory syncytial virus infection, as of May 2014
- Symptoms associated with EHEC infection, by serotype, 2013
- IASR Vol.35, No.5 (No.411), May 2014 : Enterohemorrhagic Escherichia coli infection in Japan as of April 2014
- IASR 35(5), 2014【Topic】Enterohemorrhagic Escherichia coli infection in Japan as of April 2014
- IASR Vol.35, No.4 (No.410), April 2014 : Measles in Japan, as of March 2014
- IASR 35(4), 2014【Topic】Measles in Japan, as of March 2014
- IASR Vol.35, No.3 (No.409), March 2014 : Rotavirus, 2010-2013, Japan
- IASR 35(3), 2014【Topic】Rotavirus, 2010-2013, Japan
- IASR Vol.35, No.2 (No.408), February 2014 : Severe fever with thrombocytopenia syndrome (SFTS) in Japan, 2013
- IASR 35(2), 2014【Topic】Severe fever with thrombocytopenia syndrome (SFTS) in Japan, 2013
- IASR Vol.35, No.1 (No.407), January 2014 : Hepatitis E, 2005-2013, Japan
- IASR 35(1), 2014【Topic】Hepatitis E, 2005-2013, Japan
- IASR 34(1), 2013【Topic】Mycoses in Japan as of 2012 (2)
- IASR 34(2), 2013【Topic】Measles in Japan, 2012
- IASR 34(6), 2013【Topic】Legionellosis, January 2008-December 2012
- IASR 34(7), 2013【Topic】Invasive Haemophilus influenzae infections in Japan
- IASR 34(8), 2013【Topic】Mumps (infectious parotitis) in Japan, as of July 2013
- IASR 34(9), 2013【Topic】HIV/AIDS in Japan, 2012 (3)
- IASR Vol.34, No.12 (No.406), December 2013 : Meningococcal infection, 2005-October 2013, Japan
- IASR 34(12), 2013【Topic】Meningococcal infection, 2005-October 2013, Japan
- IASR Vol.34, No.11 (No.405), November 2013 : 2012/13 influenza season, Japan
- IASR 34(11), 2013【Topic】2012/13 influenza season, Japan
- IASR Vol.34, No.10 (No.404), October 2013 : Chickenpox/varicella zoster and vaccine in Japan
- IASR 34(10), 2013【Topic】Chickenpox/varicella zoster and vaccine in Japan
- IASR Vol.34, No.9 (No.403), September 2013 : HIV/AIDS in Japan, 2012
- IASR Vol.34, No.8 (No.402), August 2013 : Mumps (infectious parotitis) in Japan, as of July 2013
- IASR Vol.34, No.7 (No.401), July 2013 : Invasive Haemophilus influenzae infections in Japan
- IASR Vol.34, No.6 (No.400), June 2013 : Legionellosis, January 2008-December 2012
- Symptoms associated with EHEC infection, by serotype, 2012
- IASR Vol. 34, No.5 (No. 399) May 2013 : Enterohemorrhagic Escherichia coli infection in Japan as of April 2013
- Enterohemorrhagic Escherichia coli infection in Japan as of April 2013
- Reporting criteria of Enterohemorrhagic Escherichia Coli Infection
- Rubella and Congenital Rubella Syndrome in Japan, as of March 2013
- IASR Vol.34, No.4 (No.398), April 2013 : Rubella and Congenital Rubella Syndrome in Japan, as of March 2013
- Guidance on Strengthening Measures for Prevention and Control of Rubella and Congenital Rubella Syndrome
- IASR Vol.34, No.3 (No.397), March 2013 : Pneumococcal infections as of March 2013
- Pneumococcal infections as of March 2013
- IASR Vol.34, No.2 (No.396), February 2013 : Measles in Japan, 2012
- IASR Vol.34, No.1 (No.395), January 2013 : Mycoses in Japan as of 2012
- Pertussis, Japan, 2008-2011
- IASR Vol.33, No.12 (No.394), December 2012 : Pertussis, Japan, 2008-2011
- 2011/12 influenza season, Japan
- IASR Vol.33, No.11 (No.393), November 2012 : 2011/12 influenza season, Japan
- IASR Vol.33, No.10 (No.392), October 2012 : Mycoplasmal pneumonia as of September 2012, Japan
- Mycoplasmal pneumonia as of September 2012, Japan
- IASR Vol.33, No.9 (No.391), September 2012 : HIV/AIDS in Japan, 2011
- HIV/AIDS in Japan, 2011
- IASR Vol.33, No.8 (No.390), August 2012 : Streptococcal infections in Japan, April 2006-2011
- Streptococcal infections in Japan, April 2006-2011
- IASR Vol.33, No.7 (No.389), July 2012 : Brucellosis in Japan, April 1999-March 2012
- Brucellosis in Japan, April 1999-March 2012
- IASR Tables Bacteria
- IASR Vol.33, No.6 (No.388), June 2012 : Kudoa and Sarcocystis Food Poisoning in Japan
- Kudoa and Sarcocystis Food Poisoning in Japan
- iasr-jjid list
- IASR Vol.33, No. 5(No.387), May 2012 : Enterohemorrhagic Escherichia coli infection in Japan as of April 2012
- Enterohemorrhagic Escherichia coli infection in Japan as of April 2012
- Symptoms associated with EHEC infection, by serotype, 2011
- IASR Vol.33, No. 1 (No.383), January 2012 : Diarrheagenic Escherichia coli in Japan as of 2011
- IASR Vol.33, No.2 (No.384), February 2012 : Measles in Japan, 2011
- IASR Vol.33, No.3 (No.385), March 2012 : Hand, foot and mouth disease in Japan, 2002-2011
- IASR Vol.33, No. 4 (No.386), April 2012 : Buruli Ulcer in Japan and in the World:2012
- Buruli Ulcer in Japan and in the World 2012
- Hand, foot and mouth disease in Japan, 2002-2011
- IASR Vol.33 No.2(No.384) February 2012, Measles in Japan, 2011
- IASR Vol.33 No.1(No.383) January 2012 Diarrheagenic Escherichia coli in Japan as of 2011