Studies have shown that the swine flu H1N1 is common throughout pig populations worldwide, with 25 percent of animals showing antibody evidence of infection.

研究表明H1N1猪流感在全世界猪群中都比较普遍，并且抗体证据表明有25%的动物被感染过。

youdao

Worldwide, laboratories have now confirmed 898 human cases of the new swine flu in 18 countries, according to the World Health Organization.

据世界卫生组织报道，在全球范围内，实验室已确诊18个国家898个猪流感病例。

youdao

The number of confirmed cases of the H1N1 swine flu virus is rising worldwide -- with nearly all of Mexico, the epicenter of the outbreak, at a standstill in a bid to contain the illness.

在全球范围内,H1N1型禽流感病毒感染病例正在增多,几乎整个墨西哥,流感爆发的中心,处在停滞状态以应对流感疫情

youdao

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

The aide recovered, but the illness was part of the worldwide outbreak of H1N1 swine flu.

VOA: standard.2009.08.10

The outbreak of swine flu in Mexico comes at a time when the country is already struggling with the effects of the worldwide economic recession and some loss of tourism caused by drug violence in cities like Juarez.

VOA: standard.2009.04.30

Meanwhile, as the number of confirmed swine flu cases reached 787 worldwide, the World Health Organization said Sunday it had started distributing 2.4 million doses of a common anti-viral drug to 72 nations.

CNN: Canada: Farmer possibly gave swine flu to pigs

The swine flu virus that has sparked fear and precautions worldwide appears to be no more dangerous than the regular flu virus that makes its rounds each year, U.S. officials said Monday.

CNN: The story

"What the epidemiologists are seeing now with this particular strain of U.N. is that the severity of the disease, the severity of the flu -- how sick you get -- is not stronger than regular seasonal flu, " Homeland Security Secretary Janet Napolitano said Monday as the worldwide number of confirmed cases of swine flu -- technically known as 2009 H1N1 virus -- topped 1, 080.

CNN: The story