Nipah Virus

Nipah Virus is a scenario introduced in the Mutation 1.8 update. It was later introduced to Plague Inc: Evolved as an Early Access build for Mutation 1.7 on May 20, 2014, along with the rest of the missing Mutation 1.8 scenarios.

Traits

Nipah Virus is a virus which is called "Nipah" in-game. It automatically starts in India with Bat 1 and the Nipah Virus ability. No symptoms are available at the start. After evolving a single trait, most symptoms will be available. To unlock the rest, purchase Encephalitic Shift and Respiratory Shift.

Transmissions

Bat 1 - Bats host a strain of the Nipah Virus that can infect humans. (can't be devolved)

Bat 2 - Pathogen able to spread through bat urine, especially via fruit. Increases infectivity, especially in hot and humid climates, and mutation.

Bat 3 - Pathogen causes bats to become restless in current habitats and search for new ones. Increases infectivity, especially in hot and humid climates.

Bat 4 - Pathogen causes bats to mob and attack humans at night. Significantly increases infectivity, and attacks can be lethal.

Swine 1 - Pigs susceptible to the pathogen and able to infect humans. Increase infectivity, especially in rural locations, as well as likelihood of mutation.

Swine 2 - Pathogen spreads through pig feces. Increases infectivity, especially in rural locations, as well as likelihood of mutation.

Swine 3 - Pathogen spreads through pork produce. Greatly increases infectivity as well as likelihood of mutation.
Fomites 1 - Pathogen survives away from a host, transmitted via external objects. Increases infectivity - especially in wealthy and urban environments
Fomites 2 - Pathogen able to survive on increased variety of surfaces. Increases infectivity - especially in wealthy and urban environments
Fomites 3 - Pathogen able to survive on surfaces for long periods of time. Increases infectivity - especially in wealthy and urban environments
Horse 1 - Horses susceptible to the pathogen and able to infect humans. Increase infectivity in rural and arid locations, as well as likelihood of mutation
Horse 2 - Pathogen spreads through horse faeces. Increase infectivity in rural and arid locations, as well as likelihood of mutation.
Dog - Dogs susceptible to the pathogen. Increases infectivity, particularly in urban areas, and likelihood of mutation. A required transmission in obtaining the Call PETA achievement.

Symptoms

These Symptoms can only be taken by first taking the 'Bat2' transmisson, available at the start of the game.

Tier 1
Nausea	Irritated stomach lining leads to discomfort. Slight chance of infection when kissing.
Coughing	Chance of infection by spreading pathogen into surroundings, especially in high density, urban areas.
Dysphagia	Difficulty swallowing causes occasional coughing when eating. Slight increase in infectivity.
Headache	Disturbance of the pain-sensitive structures around the brain. Reduces concentration.
Photophobia	Discomfort to the eyes due to light exposure.Increasingly severe in sunnier locations.
Drowsiness	Patients find themselves in a constant state of drowsiness. Research scientists are slightly less productive.
Tier 2
Vomiting	The expulsion of infected material through projectile vomiting increases the risk of infection.
Sneezing	Fluid discharge through sneezing greatly increases infection rates.
Dyspnea	Shortness of breath creates difficulty breathing, especially in arid locations. Occasionally fatal with extreme exercise.
Nuchal rigidity	Minor muscle spasms prevent flexing of the neck due to increased rigidity of surrounding muscle.
Blurred Vision	Lack of sharpness of vision results in the inability to see fine detail
Confusion	Dopamine production stimulated to cause bouts of confusion. Harder to concentrate on complex work.
Tier 3
Pulmonary Oedema	Potentially fatal heart abnormality causes breakdown of respiratory system, releasing pathogen into the air.
Pulmonary Fibrosis	Scarring of the lungs causes shortness of breath and extreme coughing. Can be fatal when combined with intense exercise.
Tachycardia	Resting heart rate is consistently above 100 beats per minute, putting undue pressure on the heart. can be fatal with older patients.
Fever	Increase in temperature, contagiousness and severe dehydration, which can be fatal.
Hallucinations	Occipital lesions created, causing severe hallucinations. Significantly harder to cure and can be fatal.
Memory Loss	Neuritic plaques deposited on grey matter significantly impact memory and learning. Research doctors lose progress.

Respiratory Symptoms

These Symptoms can only be taken by first taking the 'Respiratory Shift' ability, available after taking the 'Bat2'transmission.

Tier 4
Haemoptysis	Patients cough up bright-red, foamy blood from the respiratory tract. Increasingly infectious, particularly in urban environments.
Pulmonary Hypertension	Blood pressure in the pulmonary arteries is elevated, exerting more pressure on the heart. Can be fatal when combined with exercise.
Seizures	Random blackouts and fits reduce the patient's ability to function independently. Can be fatal.
Tier 5
Pulmonary Haemorrhage	Severe bleeding in the upper respiratory tract and the trachea. Increasing infectivity and often fatal.
Respiratory Failure	Severe hypoxemia leads to catastrophic respiratory failure and death.

Encephalitic Symptoms

These Symptoms can only be taken by first taking the 'Encepgalitic Shift' ability, available after taking the 'Bat2'transmission.

Tier 4
Seizures	Random blackouts and fits reduce the patient's ability to function independently. Can be fatal.
Coma	Neuropathic effects in the brain stem cause loss of consciousness and sometimes death. Significantly harder to cure.
Tier 5
Meningitis	Acute inflammation of the protective membranes covering of the brain and spinal cord. Highly fatal.
Encephalitis	Multiple inflammatory lesions in the brain triggered.Causes neuroligical damage resulting in death.

Abilities

Cold Resistance 1 - Pathogen evolves to withstand cold temperatures and climates.
Heat Resistance 1 - Pathogen evolves to withstand hot temperatures and climates.
Drug Resistance 1 - Pathogen becomes resistant to class 1 and 2 antibiotics. Increase effectiveness in wealthy countries.
Nipah Virus - A new strain of the Nipah Virus that spreads harmlessly through bats, with the potential to spread to humans. (can't be devolved)

Trivia

Despite "rapid urbanization", India is still a rural country in this scenario.
This is the one of the first scenarios, along with the Frozen Virus, to have achievements unique to it other than its completion achievement (i.e. Call PETA, Who needs Science, Contagion Cancelled).
The scenario description, along with the achievement "Contagion Cancelled", is a reference to a 2011 film Contagion, in which the plague in the movie is based on this virus.
James Vaughan, the creator of Plague Inc., also said that the game is "a bit like the film Contagion except you are on the other side".