• Renaming of two genuses of Caliciviridae -Norovirus (formerly Norwalk-like virus) and Sapovirus (formerly Sapporo-like virus)
  
• Overview of Caliciviridae as causative agents of gastroenteritis (Norovirus and Sapovirus )
  
• The notification for the norovirus examination in accordance with the amendment of the Food Sanitation Law -MHLW
  
• An outbreak of norovirus genogroup II infection caused by school-lunch bread, January 2003 -Hokkaido
  
• An outbreak of norovirus genogroup II infection caused by raw and cooked oysters, February 2003 -Hyogo
  
• An outbreak of norovirus genogroup I infection at a restaurant, May 2003 -Fukuoka City<
  
• Detection of noroviruses from domestic oysters for consuming raw, October 2002-April 2003
  
• Detection of noroviruses from imported shellfish, January-December 2002
  
• Risk analysis of oysters for norovirus
  
• Outbreaks of norovirus gastroenteritis at residential-care facilities, hospitals and a primary school in 2002/03 season -Hyogo
  
• An outbreak of norovirus genogroup II infection at a home for the aged, April 2003 -Hamamatsu City
  
• Occurrence of infectious gastroenteritis and detection of small round structured virus in 2002/03 season
  
• Outbreaks of norovirus genogroup II gastroenteritis at nursery and primary schools, October 2003 -Aomori and Iwate Prefectures and Fukuoka City
  
• Isolation of influenza virus type B from a returnee from the Philippines, October 2003 -Aichi
  
• Variation of hemagglutination activity of influenza virus type AH3 against red blood cells from different turkeys
  
• Isolation of a variant of coxsackievirus A24 from acute hemorrhagic conjunctivitis cases, May 2003 -Miyazaki
  
• An outbreak of EHEC O26 infection at a nursery school, July 2003 -Hyogo
  
• Increased leptospirosis cases infected presumably during leisure activity on a river, July-August 2003 -Okinawa
  
• Two leptospirosis cases infected on Iriomote Island in Okinawa, August 2003
  
• Partial amendment of the Infectious Diseases Control Law and the Quarantine Law, November 2003 -MHLW
  
• AIDS and HIV infections in Japan, July-September 2003
  

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