用“influenza epidemic”造句大全，influenza epidemic造句

"Mortality is usually low, But in rare outbreaks (see influenza epidemic of 1918-19) it reaches immense proportions. Most deaths result from pneumonia or Bronchitis. "

The high H5N1 type avian influenza epidemic is a new infectious disease among human, birds and other mammals.

This is the first province occurred in clusters of influenza a H1N1 influenza epidemic, now, the hospital gathered the number of confirmed cases of the epidemic has increased to 23 cases.

In particular the H1N1 Type a influenza epidemic, the spread of the speed, scope, which is astonishing.

Nevertheless, the epidemic is proving less contagious and lethal than other seasonal influenza epidemics in recent years, and does not appear likely to have a significant economic cost.