Isolation/detection of measles virus in Japan, 2013 (as of August 1, 2013)

From January to July 2013, the information of measles virus isolated/detected from 31 cases in 12 of 47 prefectures (Saitama, Chiba, Tokyo, Shizuoka, Aichi, Mie, Osaka, Hyogo, Wakayama, Okayama, Hiroshima and Fukuoka) was reported. 

[Genotype B3] One case in May.
  In Fukuoka, one case in May, developed measles 7 days after returning from Thailand.

[Genotype D8] 8 cases; 3 cases in March, 4 in April and one in May.
  In Osaka, 2 case in March, one detected from 7 days after returning from Singapore/Thailand and the other  detected from 6 days after returning from Thailand/China, two sporadic cases (travel history unknown) in March/April, and 3 famirial and sporadic cases in April/May.

[Genotype D9] 4 cases; 2 cases in March, one in April and one in May.
  In Mie, one domestic sporadic case in March.
  In Aichi, 2 domestic sporadic cases in March/April.
  In Osaka, one domestic sporadic case in May.*New

[Genotype H1] 5 cases; one case in February, 2 in March, and 2 in June.
  In Aichi, 2 case detected from one day and 5 days after returning from China in February/March.
  In Osaka, one case from measles patient developed in China in March, one case detected from 5 days after returning from China and one domestic sporadic case in June.

[Genotype A (vaccine type)] 11 cases; 2 case in January, 2 in February, 2 in March, 4 in April, and one in July.
  In Hyogo, a measles-suspected case in January (from the specimen taken 10 days after MR vaccination)
  In Chiba, a measles-suspected case in January (11 days after MR vaccination).
  In Saitama, a exanthem case in February (12 days after MR vaccination).
  In Wakayama, a measles-suspected case in February (5 days after measles vaccination).
  In Chiba, an acute encephalitis/encephalopathy case (vaccination history unknown) and a measles-suspected case in March (9 days after MR vaccination).
  In Hiroshima, a rubella-suspected case in April (13 days after MR vaccination).
  In Okayama, a measles-suspected case in April (10 days after MR vaccination).
  In Osaka, a measles-suspected case in April (20 days after measles vaccination).
  In Saitama, a measles-suspected case in April (10 days after MR vaccination).
  In Shizuoka, a measles-suspected case in July (11 days after MR vaccination).

 [Genotype not typed] 2 cases; 2 cases in March.
In Tokyo, 2 detected from exanthem patients, both has MR vaccination history (10 days and 16 days before specimen collection).