Alright guys .. after 5 months I finally got this Achievement... so here's what I did:

PRION VIRUS - Normal Difficulty

- Metabolic Hijack
- Genetic Mimic
- Native Biome
- Extremophile
- Sympto-Statis

- Starts at India

Transmissions as soon as possible:

- Evolve Air 1 + Water 1

Then Symptoms (also asap):

(All Tier 1)

- Nausea
- Coughing
- Rash
- Insomnia
- Cysts
- Anaemia

Then:

- Vomiting
- Sweating
- Hyper Sensitivity
- Abscesses

Wait till 19 DNA Points and then:

- Inflammation
- Diarrhoea
- Skin Lesions

And finish with:

- Tumours
- Internal Haemorrhaging

Now wait till the pop-up with the message "Artifical Organs to Save Lives" shows up and then after clicking on OK, evolve PARANOIA.

IMPORTANT: DEVOLVE ANY LETHAL SYMPTOM that may evolve from this point, except:

- Fever

Now evolve some Abilities:

- Cold 1
- Drug 1
- Cold 2
- Neutral Atrophy 1 + 2 + 3
- Genetic Hardening 1 + 2

And wait for the message on the news "New batch of artificial organs received" and just chill out. If that didnt appear, then do this:

- Cure at 25% and still no message - Evolve Fever (If is already evolved, evolve Pulmonary Oedema)
- Cure at 50% and still no message - Evolve Necrosis and Pneumonia.
- Cure at 90% - Evolve Genetic Reshuffle 1 + 2 + 3 and wait.

After some tries, what I figure it out is, sometimes the pop-up message "Artificial Organs Malfunction in X country" may appears, if that happens, restart the game and try again.

Good luck guys!

Griroesh