Research – Hot Tubs Caused Legionnaires Outbreak of 1999 Killing At Least 32

Legionella Control

One of the largest recorded outbreaks of Legionnaires’ disease

An outbreak of Legionnaires’ disease can affect many people, depending on the circumstances and how long it takes for the outbreak to be discovered. One of the largest ever known outbreaks of the disease to date took place in the Netherlands in 1999. It was named after the town in which it occurred, Bovenkarspel in Northern Holland.

The outbreak began on 25th February that year, in the middle of the Westfriese Flora, which was later renamed as the Holland Flowers Festival. The exhibition took place indoors and attracted many hundreds of visitors. The festival ended on 28th of that month, although it would not be known for some days that anything was amiss.

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