1. Paramoxoviral infectious diseases, Newcastle disease Flashcards
(11 cards)
Paramoxoviral infectious diseases is caused by what viruses?
RNA viruses belonging to family Paramyxoviridae
Family Paramoxyviridae are composed of many important diseases such as
- Bovine parainfluenza virus –> respirovirus
- Canine parainfluenza –> rubulavirus
- NewCastle disease virus –> avulavirus (OIE)
- Canine distemper –> morbilivirus
- Rhinderpest –> morbilivirus (OIE)
- Peste des petits ruminant –> morbilivirus (OIE)
NewCastle disease have 3 important info to mention
Contagious, zoonotic, OIE listed
What’s the agent for causing NewCastle disease?
Avian paramyxovirus, belonging to avulavirus
What’s the susceptible host for NewCastle disease?
Birds - both wild and domestic birds
What is NewCastle disease causing?
Mainly respiratory disease but can spread to GIT and CNS
What type of transmission is their of NewCastle disease?
Horizontal - Contact with infecteed bird OR its secretion (inhalation or ingestion)
What are clinical signs to NC disease?
Respiratory signs - coughing, sneezing or gasping for air
GIT signs - diarrhea
CNS signs - ataxia, paralysis, weakness, incoordination and animal may die
How do we diagnose New Castle disease?
- By viral identification –> using viral culture
- Serological tests:
* ELISA for detection of Ab or Ag
* HA for detection of Ag
* HIT for detection of Ab
What is the treatment for New Castle disease?
NO treatment!
Can reach up to 100% mortality.
Adult birds may recover with supportive care as fluid, nutrition and medication. ATB for secondary infections can be given
How can spreading of New Castle disease be prevented?
- By taking hygiene measures (cleaning, disinfecting areas)
- Isolating infected birds
- Regular health checks
- Vaccination of young birds / chickens
