ThePigSite Quick Disease Guide
Nipah virus disease
This is a totally new disease that first became evident in September 1998 in Malaysia. In March 1999 a previously unknown virus was isolated from an adult male who having had contact with pigs died. The virus was identified as a previously unknown paramyxovirus and the disease was called Nipah Disease from the village in Malaysia where it was first identified.
The virus causes illness and death in both humans and pigs.
Symptoms may be mild or severe and include:
- Fever, headaches, encephalitis.
- Drowsiness, confusion leading to coma.
- Respiratory failure.
- High mortality up to 40% reported.
- A few people have shown no symptoms.
- The incubation period is from 7 to 21 days.
- Morbidity is usually high but mortality is low.
- Rapid laboured breathing.
- Very harsh explosive cough.
- In sows disease may be more pronounced with severe breathing difficulties.
- Convulsions, death.
- Mucopurulent discharges from the nose.
Causes / Contributing factors
- Movement of pigs.
- Direct pig to pig contact either by mouth, by the respiratory route or aerosol from urinary excretions.