Is the Adult Gold Dragon’s Weakening Breath considered a curse, disease, or poison?

In a fight with an Adult Gold Dragon today our delightful barbarian suffered from the effect of Weakening Breath. Our transmutation wizard used his Transmuter’s Stone for Panacea to restore hit points, and cure poison, disease, and curses. Would this cure the effect of Weakened Breath?

Does my character know he’s ill while incubating a disease?

My character was bitten by a Dire Rat and through accidental meta-gaming reasons, I know he’s incubating Filth Fever. I want to ask the Paladin in our party to remove it before it can affect my stats, however, I don’t really know if my character would know he’s ill before the stat damage occurs. Is there any ruling for this?

Are creatures that are immune to disease affected by the harm spell?

The harm spell, flavourfully, states it creates a virulent disease

You unleash a virulent disease on a creature that you can see within range.

It later calls out that

Any effect that removes a disease allows a creature’s hit point maximum to return to normal before that time passes.

But no where does it state that being immune to disease (via the Paladin’s Divine Health class feature or otherwise) prevents either the initial damage or the reduction in maximum hit points.

This is in contrast to spells that spell out if immunity works, e.g. sleep.

Does immunity to disease protect you from the harm spell?

How can a disease be removed, if the description of the disease does not specify?

The description of a Gas Spore’s Death Burst [MM p. 138] says (in part):

Spores invade an infected creature’s system, killing the creature in a number of hours equal to 1d12 plus the creature’s constitution score, unless the disease is removed.

It does not say how the disease may be removed.

The DMG is very vague on disease. Regarding removal:

A simple outbreak might amount to little more than a small drain on party resources, curable by casting of lesser restoration. A more complicated outbreak can form the basis of one or more adventures….

What spells, abilities or tools can be used to remove disease where a specific cure is not mentioned in the disease’s description?

Does the effects of a failed save versus disease or poison carry over into an alternate form?

Most diseases (mundane or magical) and poison deal ability damage upon a failed save after the incubation time.

Once the damage takes place, does the negative effects of a failed save versus disease or poison carry over into an alternate form?

This question is only asking about alternate forms, not wildshape or polymorph.

How do I build a new, balanced, disease in D&D4e?

Constructing diseases and the underlying mechanics for diseases seem to be under-described in D&D4e.

  • How do I set a level for a new disease I want to create?
  • How do I choose difficulties for the tests for healing/disease progression?
  • How do I determine balanced consequences for the various disease stages?
  • What, if any, rewards should get attached to a disease?

How many people can help treat a disease?

Related to some of the other disease-based questions here, I have one that’s not covered: how many people can attempt to treat disease on a player using their Heal skill?

My reading of the rules suggests at most one, but I’m not sure.

If so, can others use Aid Another for this individual during the course of the extended rest?

To me, logic suggests that too many people being involved might actually make it harder to treat the patient, i.e. the classic “too many chefs in the kitchen” argument.

What counts as a disease?

Do any books contain a rules definition of what is and is not a disease.

Here are some examples of aliments I, the DM, would like to see if they match the definition if such a thing exists. I put a broad range of aliments here and included things like Kidney Failure to try to illustrate what I would like to compare to the definition.

Examples:

  • Down Syndrome
  • Diabetes
  • Kidney Failure
  • Malaria (Dormant or Active)

What happened to disease in D&D 5e?

In the Player’s Handbook, disease is mentioned in the Petrified condition’s description (‘the creature is immune to poison and disease’), but there is no Diseased condition to be found, nor is disease even listed in the book’s index. Is the idea that every disease is unique and so there is no ‘general’ condition to cover it?