Mirza Ikram Ali Baig.
Avian influenza.
Med Today Jan ;4(1):30-2.

All influenza viruses have the ability to change. If a changed H5N1 virus develops the ability to infect humans then it can spread easily from person to person, resulting in worldwide outbreak of disease (influenza pandemic). Because these viruses do not commonly infect humans, there is little or no immune protection against them. This is a short communication.

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