Malaria

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Overview

Malaria is a disease in RimWorld that can be contracted by colonists in any biome, but it's easier to contract in the jungle. General symptoms include impaired consciousness, blood filtration - and eventually pain, vomiting, and impaired manipulation. Advanced symptoms include frequent vomiting along with a loss of consciousness, and death.

As there's no reliable way to calculate the time to develop immunity due to Malaria's nature, the figures are calculated assuming 94.7% blood filtration (the 'average' blood filtration throughout all stages of the disease), giving the closest possible to a perfectly accurate result

If left untreated, Malaria can kill the affected person in 2.701 days.
It takes around 3.819 days to develop immunity to Malaria; assuming the affected colonist is rested in an ordinary bed for the whole time, has nothing else affecting blood filtration, is well-fed, and under the age of 40.

Stages

Minor (Hidden) - Severity: 0 - 0.62

  • No effects on the affected colonist
  • Buildup to the 63% head start that Malaria has.

Minor - Severity: 0.63 - 0.77

  • -10% Blood Filtration
  • -5% Consciousness

Major - Severity: 0.78 - 0.9

  • Vomiting every 1.5 days (36 hours) on average.
  • +30% Pain
  • -20% Blood Filtration
  • -12% Consciousness
  • -8% Manipulation

Extreme - Severity: 0.91 - 1

  • Vomiting every 0.75 days (18 hours) on average.
  • Loss of Consciousness
  • +30% Pain
  • -22% Blood Filtration
  • -10% Manipulation
  • Death

Overcoming Malaria

It's especially important that affected colonists are rested while they fight off Malaria due to its effect on Blood Filtration, and that you have plenty of medicine and a skilled doctor in hand. As with any other disease, you'll also want to make sure that the patient is well fed, and that they're promptly treated.

You can also administer Penoxycyline, which boosts the immunity by 35%.

Treating Normal People (<40 Years Old)

You will need at least 36% average treatment quality in order to sufficiently slow down Malaria's progress to the point where it doesn't kill the patient.

The following combinations of doctoring skill and medicine are capable of achieving 36% treatment quality (assuming a perfectly healthy, unmodified doctor, the patient is rested and well-fed at all times, and treatment is administered immediately) - you'll generally want to aim above these thresholds for safety though; these combinations are just the bare minimum required, and aren't guaranteed to work out:

Treating the Elderly (80+ Years Old)

As standard, you'll need to be more generous with doctors and medicine to ensure that old colonists survive. You will need at least 65% average treatment quality in order for the affected individual to have a chance of surviving. Again, this is a bare minimum and you should generally look towards more potent combinations than the following in order for guaranteed survival:

  • Level 3 Medicine and Glitterworld Medicine
  • Level 8 Medicine and ordinary Medicine
  • Level 15 Medicine and Herbal Medicine