"東京での感染爆発が止まらない"
-> 直訳:The explosive growth of infected in Tokyo is not stopping.
- The number of corona cases keep rising in Tokyo.
コロナ感染者数の爆発が止まらない。
- In Tokyo, the number of those who have caught corona has exploded and isn't stopping.
- The increase in corona cases in Tokyo isn't slowing down.