2011年第03号.pdf

The report from the Ministry of Health, Labour and Welfare / National Institute of Infectious Diseases in Japan for the 3rd week of 2011 (January 17-23) indicates the following trends in infectious diseases:

Influenza: The number of reported cases per sentinel site has been increasing for 14 consecutive weeks, with a current rate of 26.41, which is higher than the average for the same period over the past 5 years.
Other notable trends include:
+ RS virus infection: The number of reported cases increased to 2,414, with 71% of cases occurring in children under 1 year old.
+ Pharyngoconjunctival fever: The number of reported cases decreased for the second consecutive week, but remains higher than the average for the same period over the past 5 years.
+ Acute hemorrhagic conjunctivitis: The number of reported cases decreased for the second consecutive week.
+ Hand, foot, and mouth disease: The number of reported cases increased.
+ Infectious gastroenteritis: The number of reported cases increased for the second consecutive week.
+ Varicella: The number of reported cases decreased for the second consecutive week.
+ Scarlet fever: The number of reported cases increased for the third consecutive week, and is higher than the average for the same period over the past 5 years.
+ Pertussis: The number of reported cases increased for the second consecutive week, and is higher than the average for the same period over the past 5 years.
+ Herpangina: The number of reported cases remained stable.
+ Epidemic mycoplasma pneumonia: The number of reported cases increased for the third consecutive week.

The report also notes that the number of reported cases of certain diseases, such as influenza and scarlet fever, is higher than the average for the same period over the past 5 years, indicating a potential increase in the incidence of these diseases.