19.04.2011

Seven H5N1 avian influenza outbreaks occurred in poultry flocks in villages scattered among five provinces of Vietnam in late March and early April. Officials said 5,509 of 6,932 susceptible birds got sick and 1,155 died. The outbreak start dates ranged from Mar 28 through Apr 8. Causes cited for the outbreaks included the introduction of new animals into flocks, illegal movement of animals, and fomites such as humans, vehicles, and feed. Yesterday's was the fourth H5N1 outbreak filed by Vietnam this year.