For which illnesses or diseases should the community fast and proclaim?

Fasts & MourningHolidaysFasts and Mourning

Synopsis

Communal fasting is declared for severe contagious diseases (diphtheria, smallpox, sweating fever) when deaths occur or spread is widespread. Dry cough triggers public outcry only, not fasting.

Early Acharonim
Lenient
Strict
Lesser cited
Major authority

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