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19 September 2017

Typhoid fever outbreak - Rainbow gathering, Northern Italy

On 10 September 2017, French authorities reported to the European Centre for Disease Prevention and Control (ECDC) three cases of typhoid fever linked to the European Rainbow gathering that took place in Tramonti di Sopra, Friuli-Venezia Giulia region, Italy, from 23 July to 21 August 2017. On 12 September, German authorities reported a further case linked to this Rainbow gathering. Additional cases are possibly associated with this event.

Typhoid fever is an infection caused by Salmonella Typhi, which is a rare disease in Europe but endemic in many parts of the world and causing approximately 21 million cases and 222,000 deaths annually worldwide. The infection is usually associated with poor sanitation, food contamination and lack of clean drinking water. Severe forms of the disease can be lethal especially without adequate treatment.

Typhoid fever incubation period is usually 1-2 weeks but can be up to 60 days. Some individuals can become chronic carriers with the possibility to further transmit the disease to their close contacts without presenting with symptoms. The risk of further transmission is increased in the case of a chronic carrier involved in food handling activities. Therefore, infected participants returning home from Rainbow events may cause further transmission of the disease.

Preventive measures include regular hand washing with soap, scrupulous food handling hygiene, eating thoroughly cooked food, and avoiding use of unsafe water without boiling it first. In natural circumstances, latrines should be located at a site distant from water sources. Typhoid fever vaccine is a safe vaccine with a moderate protective effect that can be considered for travellers to endemic areas, or people at increased risk for infection.

People presenting with fever and/or gastrointestinal symptoms after a potential exposure to persons infected with Salmonella Typhi should seek medical advice without delay. [Source: ECDC News Release, 10 September 2017. https://ecdc.europa.eu/en/news-events/typhoid-fever-outbreak-linked-rainbow-gathering-northern-italy]

Note: Rainbow gatherings are ‘temporary communities of people who meet in remote forests around the world for four weeks at a time to enact a supposedly shared ideology of peace, harmony, freedom, and respect’ [Wikipedia].

Vol: 51 No: 37 Year: 2017 Page:


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