1. Tokyo has issued a flu warning for the first time in November since 2009, due to an increase in reported cases.
2. The number of flu patients per medical institution in Tokyo rose significantly from the previous week, with 12 out of 31 public health centers reporting over 30 cases per institution.
3. Over 30% of Tokyo's total population is living in these 12 areas, and there has been a significant increase in school closures due to flu outbreaks compared to the same period last year (over 11 times more). The metropolitan government advises taking preventative measures like hand washing, mask usage, and avoiding crowded places.