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Novel influenza A (H1N1) in Tokyo

Last updated July 21, 2009

1. Number of cases
As of July 20, 2009, the total number of novel influenza cases in Tokyo is 222.

StatusJuly 18, 2009Cumulative cases
Laboratory-confirmed cases
(Novel influenza cases)
1222
Suspected cases*02
Total1224

* Several cases changed in status are excluded

1-2 Number of novel influenza cases by date of receipt
Number of novel influenza cases by date of receipt
1-3 Number of novel influenza cases by age group
Number of novel influenza cases  by age group
2 Symptoms (N=222)

SymptomsAttack rate (%)
Fever98.6
Cough71.6
Runny or stuffy nose33.8
Sore throat44.6
Muscle or joint pain21.2
Fatigue23.0
Vomiting4.1
Diarrhea3.6
Conjunctivitis0

3 Map of novel influenza cases by prefecture
Reported Area in Japan
4 Related Links

Measures taken by the Tokyo Metropolitan Government on Influenza A (H1N1)(Bureau of Social Welfare and Public Health)
Influenza A (H1N1) Q & A (Bureau of Social Welfare and Public Health)
Please Take the Following Precautions to Guard against(PDF:115KB)(Bureau of Citizens, Culture and Sports)
Ministry of Health, Labour and Welfare
Infectious Disease Surveillance Center
WHO
CDC