Avian Influenza | Bird Flu

Avian Influenza Virus Transmission

Routes of bird-to-bird transmission include:
Airborne transmission if birds are in close proximity
Direct contact with contaminated respiratory secretions or fecal material

Vertical transmission is not known to occur
Other factors that contribute to spread within and between flocks include the following:
Broken contaminated eggs in incubators infecting healthy chicks (see References: OIE 2002)
Movement of infected birds between flocks
Movement of fomites such as contaminated equipment, egg flats, feed trucks, and clothing and shoes of employees and service crews (see References: APHIS, Beard 1998)
Contact with infected wild birds and waterfowl
Fecal contamination of drinking water
Garbage flies (suspected of transmitting the virus during the 1983-1984 epidemic in Pennsylvania) (see References: Beard 1998)
The disease is highly contagious. One gram of contaminated manure can contain enough HPAI virus to infect 1 million birds (see References: APHIS).

Free Ask Question:

1. Definition of Avian Influenza?

2. Agent?

3. Hosts?

4. Transmission?

5. Key Outbreaks of HPAI in Domestic Avian Populations?

6. Current Status of H5N1 in Asia?

7. HPAI As a Biological Weapon?

8. Clinical Features?

9. Differential Diagnosis?

10. Laboratory Diagnosis?

11. Treatment?

12. Prevention?

13. Outbreak Control in Poultr?