Recently, the news has been filled with reports of the "bird flu". 46. Asia is on a region- wide health alert, with governments slaughtering millions of chickens to contain outbreaks of the bird flu in Thailand, Vietnam, Cambodia, South Korea, Japan and China.
Influenza-commonly called "flu"-is one of the oldest and most common diseases known to man. It can also be one of the deadliest. 47.The great "Spanish flu" pandemic of 1918-1919 was considered the worst plague in history, killing up to 40 million people with half of the world’s population infected in only a few months.
48.Influenza can also infect many different warm-blooded animals, such as birds. However, the "flu" virus usually develops different variants that are specialized for each species of animals that they infect. Cross species infections are rare.
A flu strain called influenza A (H5N1) appears to have made a successful jump
Recently, the news has been filled with reports of the "bird flu". 46. Asia is on a region- wide health alert, with governments slaughtering millions of chickens to contain outbreaks of the bird flu in Thailand, Vietnam, Cambodia, South Korea, Japan and China.
Influenza-commonly called "flu"-is one of the oldest and most common diseases known to man. It can also be one of the deadliest. 47.The great "Spanish flu" pandemic of 1918-1919 was considered the worst plague in history, killing up to 40 million people with half of the world’s population infected in only a few months.
48.Influenza can also infect many different warm-blooded animals, such as birds. However, the "flu" virus usually develops different variants that are specialized for each species of animals that they infect. Cross species infections are rare.
A flu strain called influenza A (H5N1) appears to have made a successful jump
我来回答: