Detect Poison and Disease

Level & School
1st-level divination
Casting Time
Action or Ritual
Range
Self
Components
V, S, M (a yew leaf)
Duration
Concentration, up to 10 minutes
Classes
Cleric, Druid, Paladin, Ranger

For the duration, you sense the location of poisons, poisonous or venomous creatures, and magical contagions within 30 feet of yourself. You sense the kind of poison, creature, or contagion in each case.

The spell is blocked by 1 foot of stone, dirt, or wood; 1 inch of metal; or a thin sheet of lead.

Level & School
1st-level divination
Casting Time
Action
Range
Self
Components
V, S, M (a yew leaf)
Duration
Concentration, 10 minutes
Classes
Cleric, Druid, Paladin, Ranger

For the duration, you can sense the presence and location of poisons, poisonous creatures, and diseases within 30 feet of you. You also identify the kind of poison, poisonous creature, or disease in each case.

The spell can penetrate most barriers, but it is blocked by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt.

Detect Poison and Disease 5.5e 2024 vs. 5e 2014 edition differences

The 2024 version allows casting as a ritual, and the duration is "up to 10 minutes" instead of fixed. It specifies "magical contagions" instead of diseases, and "venomous creatures" added. The sensing language is slightly broader, but no significant mechanical change in detection mechanics.