During the last flu season, twelve percent of H1N1 viruses tested in the United States were resistant to Tamiflu.

VOA: special.2009.03.04

You've got the flu, you've got influenza in your upper respiratory tract, your cells are making more influenza.

你就此得了流感,你得了上呼吸道流感,你的细胞正在制造更多流感病毒

耶鲁公开课 - 生物医学工程探索课程节选

In the United States, cases of suspected influenza are at higher numbers than usual this early in the flu season.

VOA: special.2009.11.24

These urge local officials to balance to risk of flu in their communities with the problems that school dismissals could cause.

VOA: special.2009.08.13

W.H.O.special adviser Keiji Fukuda said last week that the virus has continued to act in some ways like seasonal flu.

VOA: special.2009.11.11

You could be placed in medical isolation if someone you traveled with on a plane is suspected of having swine flu.

VOA: special.2009.07.14

Doctor Fukuda, the agency's top flu expert, says the virus continues to spread in North America.

VOA: special.2009.06.10

The most common seasonal flu virus found in the United States this year is type A(H1N1).

VOA: special.2009.03.04

The United States declared a public health emergency to permit the use of federal money and the use of flu medicines in federal storage.

VOA: special.2009.04.29

An unusual number of flu cases have been found in young people who were otherwise healthy.

VOA: special.2009.06.10

The last flu pandemic was in nineteen sixty-eight, caused by the so-called Hong Kong flu.

VOA: special.2009.06.10

Scientists also completed similar research on victims of the Spanish flu epidemic in nineteen eighteen.

VOA: special.2010.06.29

The traditional way to make flu vaccine is to grow the virus in chicken eggs.

VOA: special.2009.11.11

But experts say it has become the leading flu virus in all countries.

VOA: special.2009.11.24

But,no one has died from swine flu in this country.

VOA: special.2009.04.29

The World Health Organization reports a 75 percent jump in the number of confirmed swine flu cases worldwide since Wednesday.

VOA: standard.2009.04.30

Dr.Redd says and he expects it to be the dominant flu virus in the southern hemisphere in the coming flu season.

VOA: standard.2010.04.29

Donaldson says Britain has been planning for a pandemic for about five years, after a scare with bird flu in 2003.

VOA: standard.2009.07.31

Each year,scientists work to develop a unique influenza vaccine to protect people against the strain expected in the coming flu season.

VOA: standard.2010.07.21

Mr.Obama also says government agencies are preparing in case the flu comes back in a stronger form in the normal flu season.

VOA: standard.2009.05.01

But enter "swine flu parties" in an Internet search, and you will see, the idea is out there.

VOA: standard.2009.12.18

Growing fears of a flu epidemic across the Arab world is prompting Arab health ministers to restrict participation in this year's annual Hajj.

VOA: standard.2009.07.23

Take,for example, the outbreaks of mad cow disease in Europe and swine flu in the United States.

VOA: standard.2010.02.22

Operations for people were postponed because facilities and medical practitioners were preoccupied and needed to serve influenza like diseases or flu in particular,".

VOA: standard.2009.09.04

By Friday, the United States had 141 confirmed cases of H1N1,with the flu reported in 19 states.

VOA: standard.2009.05.01

The Red Cross says people in developing countries are most vulnerable to the H1N1 Swine Flu virus.

VOA: standard.2009.09.04

Mutations in the virus mean that last year's vaccine probably won't protect against this year's flu variety.

VOA: standard.2010.07.21

Worries about an anticipated resurgence of swine flu in North America later this year is expected to be an urgent topic at the summit.

VOA: standard.2009.08.10

However,Australian health authorities expect a sharp rise in the number of swine flu infections in August, toward the end of winter in the southern hemisphere.

VOA: standard.2009.07.24

Professor Chris Dennis, a respiratory physician, who is chairing the seminar, says international cooperation is a vital ingredient in the fight to conquer swine flu.

VOA: standard.2009.08.25