Some people can be infected with Legionella bacteria and have mild symptoms or no illness at all.

有些军团病感染者所表现出来的症状比较温和，甚至根本就没有得病的迹象。

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Some people can be infected with Legionella bacteria and have mild5 symptoms or no illness at all.

有些军团病感染者表现出来的症状比较轻微，甚至根本就没有得病的迹象。

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Legionnaires' disease is caused by infection with Legionella bacteria which are found naturally in the environment and thrive in warm water and warm damp places.

军团病是由军团杆菌引起，这种细菌产生在自然环境中，在温水里及潮热的地方蔓延。

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But Legionella bacteria can cause a form of pneumonia in people with weakened immune systems.

VOA: special.2011.04.06

They found that half contained Legionella bacteria, compared to fifteen percent of manual faucets.

VOA: special.2011.04.06

Official figures show there have been 13 cases of patients catching the legionella bacteria since 2002.

BBC: Legionella bacteria

The disease is a potentially fatal form of pneumonia caused by the legionella bacteria.

BBC: Legionella bacteria

The Legionella bacteria is commonly found in sources of water, such as rivers and lakes.

BBC: Legionnaires' Disease bacteria