There are a number of live vaccines available in Malawi to combat Newcastle disease (ND) in poultry. Some are best suited for use in commercial poultry; others for use as a booster vaccine; others for use in free-range village poultry. How then to decide which is correct?
The active constituents of all these vaccines are types (strains) of Newcastle Disease virus which are weak. We give them names like I‑2, LaSota, Hitchner, etc. The vaccine virus is strong enough to get into the body of the vaccinated chicken but not strong enough to kill it. In the week or so after vaccination, the vaccine virus causes the chicken to create its own immunity. That same immunity will fight off a future infection by the real Newcastle disease virus.
Below is a brief summary of some of the more important features of the live vaccines currently available. It will help you decide which particular Newcastle disease vaccine is best suited for your purposes.
With all vaccines (indeed all medicines), read the label carefully and in particular check the expiry date, storage conditions, and method of reconstitution if required.
|Vaccine strain1||Usual Administration||Immuno-genicity2||Vaccinal reaction3||Thermo-stability4||Cost5|
|La Sota||Eye drop
(Hester Thermostable ND)
|I-28||Eye drop||+++++||Very low||Good8||Medium|
Footnotes:1. Not to be confused with trade name. The same strain might be available under different trade names.
Anon. "Newcastle disease vaccines: an overview". http://www.fao.org/docrep/005/ac802e/ac802e04.htm (Accessed 2 January 2022)
Bell, JG. 2000. "A comparison of the different vaccines available for the control of Newcastle disease in village chickens". https://www.aciar.gov.au/sites/default/files/legacy/node/2131/pr103_pdf_63743.pdf (p56-60. Accessed 2 January 2022)