Study Suggests Attenuated Poultry Virus Vaccine Strains Recombined to Regain Virulence | GenomeWeb

NEW YORK (GenomeWeb News) – A study online today in Science hints that the live, attenuated viruses used in some vaccines may be able to recombine in their hosts in rare cases, producing viruses that are once again able to cause infection.

The new analysis focused on a bird virus called herpesvirus infectious laryngotracheitis virus, or ILTV, that's known for causing respiratory disease in chickens and other poultry.

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