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YERSINIOSIS - RUSSIA (YAMALO-NENETSKY)

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According to the ITAR-TASS report, schoolchildren in Noviy Urengoy 

[in the Yamalo-Nenetsky autonomous district of western Siberia - 

Mod.LL] have become infected with pseudotuberculosis [_Yersinia 

pseudotuberculosis_ - Mod.LL]. Galina Cenevoy, from the Institute of 

Epidemiology and Microbiology in Saint Petersburg commented regarding 

the laboratory confirmation of the diagnosis and the quick 

recognition of infection by local physicians.



This infection can be transmitted by eating raw vegetables, 

especially possible when the technology of processing is not up to 



The outbreak of pseudotuberculosis was detected on 18 Sep 2007 in the 

settlement of Noviy Urengoy when 20 schoolchildren were admitted to 

the hospital and 77 received out patient care. A preliminary analysis 

suggested that fresh vegetables for salad were a possible cause of 

infection. The overall number of affected people has increased to 121 

with 38 of them admitted to hospital. An investigation has been 

launched to assess the outbreak.



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[The manifestations of illness in these cases are not stated. 

Infection with _Yersinia pseudotuberculosis_ is a zoonosis with 

reservoirs in many animals, including rodents, rabbits, deer, and 

various birds.



Most individuals affected are children or young adults. The most 

common presentation of this infection is mesenteric lymphadenitis, 

with fever and right lower quadrant abdominal pain, which can be 

confused with acute appendicitis. A febrile gastroenteritis may also 

occur, which has been described as Izumi syndrome in Japan. Late 

complications may be a reactive arthritis or erythema nodosum.



Although many associations had been previously made, one of the 

strongest studies of the relationship of _Y. pseudotuberculosis_ and 

food was published in 2004 from Finland (1). The editorial commentary 

(2) with the paper is a nicely presented discussion on the hazards of 

infections associated with fresh produce. The diagnosis of infection 

with this bacterium can be made by isolation of the organism from 

lymph node or stool. Serological tests can be helpful, but 

cross-reactions are found between yersiniae and other enteric 

organisms, including some salmonellae.





761-3. - Mod.LL]



[The Yamalo-Nenetsky Autonomous District in the Urals Federal 

District of Russia can be located on the map at 



Yersiniosis - Russia (Khabarovsk) 20070803.2511

Yersiniosis - Russia (Yugra)  20070501.1412

2006

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Yersiniosis - Russia (Novosibirsk) 20060929.2792

2005

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Yersiniosis, kindergarten - Russia (Novgorod) 20051216.3617

Yersiniosis - Russia (Siberia) 20050427.1169

Yersiniosis - Russia (Far East) 20050202.0359

2002

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Yersiniosis - Russia (Far East)  20020206.3499

1999

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Yersiniosis - Russia (Kemerovo) 19990405.0551]

...................................nr/ll/mj/mpp