Experts at the Health Protection Agency (HPA) say young people are most affected.

健康保护局的专家指出，青少年受害颇深。

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The Health Protection Agency has issued an alert, but doctors report only those cases they treat.

英国健康保护局已经发出警报，不过医生只能报告自己治疗过的病例。

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Hot tubs and spa pools carry a similar infection risk, according to the Health Protection Agency.

根据健康保障机构说法，浴缸和水疗池也带有类似的感染风险。

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In Washington, the Environmental Protection Agency on Monday declared carbon dioxide and other greenhouse gases a threat to public health.

VOA: special.2009.12.12

The United Kingdom Health Protection Agency warned that the ash could cause itchy eyes,a runny nose, sore throat or dry cough.

VOA: standard.2010.04.16

In Washington Monday, the U.S.Environmental Protection Agency declared greenhouse gasses a "threat to public health and the welfare of the American people."

VOA: standard.2009.12.09

The Health Protection Agency said so far there were no reported cases of infection.

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Infection rates always fluctuate and cases could easily rise again, says the Health Protection Agency (HPA).

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In 2008, the Health Protection Agency recorded 39 confirmed cases of the disease in Wales.

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