Flash Report of measles virus in Japan

	Isolation/detection of measles virus in Japan, 2012
	(Data based on the reports received before February 1, 2012)

In Japan, prefectural and municipal public health institutes (PHIs) report isolation/detection of infectious agents from specimens collected by sentinel clinics and hospitals under the National Epidemiological Surveillance of Infectious Diseases, other medical institutions and health centers.

Figure 1. Monthly reports of measles virus isolation/detection, 2008-2012 Figure 2. Isolation/detection of measles virus by prefecture, 2009-2012 Figure 3. Monthly isolation/detection of measles virus by prefecture, 2012 Figure 4. Monthly isolation/detection of measles virus genotype D8 by prefecture, 2012 Figure 5. Age distribution of cases with measles virus inolation/detection, 2011&2012 Figure 6. Isolation/detection of measles virus by genotype and prefecture, 2011&2012

In January 2012, PHIs in Tokyo Metropolitan and 4 prefectures (Chiba, Gifu, Aichi and Okayama)   reported 11 measles virus isolation/detection. [Genotype D8] 9 cases in January.    In Chiba, one domestic case who developed measles after contact with a family member who    developed measles in December 2011 and 2 domestic sporadic cases.    In Tokyo, one developed measles 3 days before returning from Thailand.    In Aichi, 4 domestic sporadic cases.    In Gifu, one domestic sporadic case. [Genotype D9] 2 cases in January.    In Okayama, 2 family members developed measles 10 and 18 days after returning from    Philippines.

	Tables
		Updates	(based on the data reported before yesterday)

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