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עמוד בית
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June 2022
Ravit Bassal PhD, Rita Dichtiar MPH, and Lital Keinan-Boker MD

Background: Salmonella, Shigella, and Campylobacter are highly prevalent among children. Reports on risk factors of patients infected with all three pathogens, not simultaneously, are scarce.

Objectives: To identify risk factors for multiple infection with Salmonella, Shigella, and Campylobacter in the same child.

Methods: Using the Israel Sentinel Laboratory-Based Surveillance Network, we conducted a retrospective observational case-case–control study among children aged 0–9 years. A case was defined as a child infected with Salmonella, Shigella, and Campylobacter at different occasions between January 1999 and December 2020. A control was defined as a child infected with a single pathogen once, during the same period. Logistic regression models were applied to determine the association between multiple infections and demographic characteristics.

Results: We identified 109 cases (0.1%) infected with Salmonella, Shigella, and Campylobacter, and 86,511 controls (99.9%) infected with only one bacteria type. In a multivariable analysis, we showed that being Jewish (odds ratio [OR] 2.4, 95% confidence interval [95%CI] 1.3–4.4), having residency in Jerusalem (OR 3.2, 95%CI 1.3–7.7), or in the southern district (OR 3.7, 95%CI 1.5–8.8) were independent risk factors for multiple infection.

Conclusions: Although very rare, non-simultaneous infection with multiple bacteria does occur in Israel. National and local authorities should promote programs to encourage proper hygiene practices, which are culture-adjusted.

October 2016
Diana Tasher MD, Eran Kopel MD, Emilia Anis MD, Zachi Grossman MD and Eli Somekh MD

Background: During 2013–2014 Israel experienced a continuous circulation of wild poliovirus type 1 (WPV1) but with no clinical cases. WPV1 circulation was gradually terminated following a national vaccination campaign of bivalent oral poliovirus vaccine (bOPV) for 943,587 children < 10 years. Four cases of children with neurological manifestations that appeared following bOPV vaccinations were reported during the campaign: three of Guillain-Barré syndrome (GBS) and one of acute disseminated encephalomyelitis (ADEM). 

Objectives: To present an analysis of these cases, the rapid response and the transparent publication of the results of this analysis. 

Methods: The clinical, laboratory and epidemiological data of these four patients were available during the analysis. In addition, data regarding the incidence of GBS and ADEM during previous years, and reported cases of acute flaccid paralysis (AFP) and the incidence of Campylobacter jejuni enteritis were collected from the Epidemiology Department of the Israel Ministry of Health.

Results: The incidence of GBS among bOPV-vaccinated children was not higher than among bOPV-unvaccinated children. For all the cases reviewed the "incubation period" from vaccination to the event was longer than expected and other more plausible causes for the neurologic manifestations were found. There is no evidence in the literature of a causal relationship between bOPV and ADEM. 

Conclusions: There was no association between the bOPV vaccine and the reported neurological manifestations. We believe that our experience may assist other public health professionals when confronting a similar problem of alleged side effects during a mass medical intervention.

 

August 2010
R. Nevzorov, E. Shleyfer, A. Gourevitch, A. Jotkowitz, A. Porath and L. Barski
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