The Posek HaDor, Sar HaTorah, the Av Beis Din of Yerushalayim shlit"a:
Tomorrow, on the fast day, at Avinu Malkeinu (in Eretz Yisroel), one should say "Avinu Malkeinu, 'restrain' the plague from Your inheritance," in light of the current difficult situation.

Avinu Malkeinu, restrain the plague from Your inheritance