Why Some Avian Influenza Vaccines Fail
Published: May 13, 2015
Summary
Avian influenza, or “bird flu,” poses a continuing threat to birds, animals, and people throughout the world. In December 2014, the presence of a highly pathogenic avian influenza H5 virus in both domestic and wild birds was confirmed in Washington State. Since then, the virus has been found in wild birds in California, Idaho, Utah, Nevada, and Oregon.
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Polchem
4 de junio de 2015
Dr David Swayne's findings and conclusions in Indonesia may be relevant to the situation in India as well. In India it has been observed that H9 low path and H5 high path keep on striking at regular intervals in different parts. Locally prepared vaccines do offer protection but rather inconsistently. Dr Swayne also rightly points out that local vaccine strains must get regularly evaluated and replaced by new emergent strains (on account of the mutating nature of the virus) in the given geo-climatic zone of India. This needs to be done under control of government laboratory so that proper mapping of pathotypes could be done continuously.
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