WHO: Legionnaire's outbreak major health emergency

2014-11-12 05:05
A general view of Portuguese fertilizer factory ADP at Povoa de Santa Iria, near Lisbon. (Patricia De Melo Moreira, AFP)

A general view of Portuguese fertilizer factory ADP at Povoa de Santa Iria, near Lisbon. (Patricia De Melo Moreira, AFP)

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Geneva - An outbreak of Legionnaire's disease in Portugal that has killed five people in less than a week constitutes a "major public health emergency", the World Health Organisation warned on Tuesday.

The UN health agency said Portugal had notified it of a "large outbreak" of Legionnaire's disease in the Vila Franca de Xira suburb of Lisbon, voicing concern about the public health implications.

The disease is not contagious and cannot be spread directly from person to person, but can multiply in water and air conditioning systems, including humidifiers, whirlpools and spas.

It is usually caught by breathing in small droplets of contaminated water.

The Portuguese government said the outbreak was very likely caused by bacteria found in the refrigeration system of a fertiliser factory in Vila Franca de Xira, located about 30km from Lisbon.

Environment Minister Jorge Moreira da Silva said the Adubos factory was also being tested to see if there was negligence in maintainance and if any "environmental crime" had been committed.

He said the outbreak was the third biggest in the history of the disease.

The first 17 Portuguese cases were identified late last Thursday, and since then a full 233 cases have been reported, WHO spokesperson Christian Lindmeier told reporters in Geneva, adding that most of those infected were aged between 50 and 60.

Thirty-eight people are in intensive care and five have died, most of them with pre-existing medical conditions.

"This is the biggest Legionnaire's disease in Portugal and is considered a major public health emergency," Lindmeier said, describing the outbreak as "unusual and unexpected".

The source of the outbreak has yet to be identified, but he said that with such a large outbreak, it was unlikely that the infection had originated in a single household.

As a precaution, cooling towers in the area have been closed for disinfection, he said.

"The municipal water has now been checked and found to be safe," he said, adding: "No risk has been detected from drinking water in the affected areas."

The disease was discovered in the United States in 1976 during a convention of the American Legion, a military veterans group, at which 29 people died.

Read more on:    portugal  |  health

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