Read the following passage and answer the question.
HANOI: Bird flu has been found on a duck farm in Vietnam, the first outbreak of the disease in the country since last March, the Agriculture Ministry’s Animal Health Department said. A total of 65 ducklings had died from the disease since March 22. The animals had not been vaccinated against the virus. REUTERS
Based on the passage, which of the following statements is correct?
The bird flu virus was first found in Vietnam.
No ducks have been vaccinated.
Bird flu has returned to Vietnam and 65 ducklings died.
Ducklings in Vietnam died even though they were vaccinated.