Daniel Chemtob

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BACKGROUND Tuberculosis (TB) in migrants is an ongoing challenge in several low TB incidence countries since a large proportion of TB in these countries occurs in migrants from high incidence countries. To meet these challenges, several countries utilize TB screening programs. The programs attempt to identify and treat those with active and/or infectious(More)
Contact investigation to identify individuals with tuberculosis and latent infection with Mycobacterium tuberculosis is an important component of tuberculosis control in low tuberculosis incidence countries. This document provides evidence-based and best-practice policy recommendations for contact tracing among high- and medium-priority contacts in a(More)
OBJECTIVE To compare drug-resistant variants from untreated (naive) and treated patients infected with clade B or C virus. METHODS Consecutive samples (165) from patients throughout Israel were analyzed. All those in the treated group were failing highly active antiretroviral therapy. RESULTS There were 87 clade B (14 naive) and 78 clade C (20 naive)(More)
SETTING Right of entry may sometimes be denied to immigrants because of the threat of tuberculosis. During 1990-2000 some 1050000 immigrants, mostly from countries highly endemic for TB, arrived in Israel, a low prevalence country. Nevertheless, TB rates in Israel have remained low. OBJECTIVE To emphasise the challenge beyond technical competence for TB(More)
Restriction fragment length polymorphism analysis with IS6110 and DR-r probes was used to study 69 Mycobacterium tuberculosis isolates obtained from Israeli patients and new immigrants from the former Soviet Union and Ethiopia. DNA fingerprinting identified unique patterns for almost all isolates, indicating that most patients were infected with a unique(More)
'Recreational' substances used among men having sex with men, and their association with risky unprotected anal intercourse (RUAI) were examined--for the first time in Israel--in an internet-based questionnaire assessing knowledge, practices and motivation. Between March and May 2005, 2873 participants completed the entire questionnaire. Of the total, 669(More)
SETTING Israel receives migrants from various countries, some of which have high tuberculosis (TB) prevalence. OBJECTIVE To assess the predominant Mycobacterium tuberculosis strains in Israel isolated during 2008-2010 among Israeli-born and migrant patients, and to investigate possible transmission of TB from migrants to the local population. METHODS(More)
BACKGROUND The crowded environment of correctional facilities may enhance infectious diseases transmission, such as tuberculosis. OBJECTIVES To define the tuberculosis burden in prisons in Israel, a country of low TB incidence (7.9 cases:100,000 population in 2004), in which about 13,000 inmates are being incarcerated annually, and to recommend policy(More)
The rising trend of sexually transmitted infections (STIs) reported in several western countries has also affected Israel. To review epidemiological trends and to address additional issues needed for a wider overview on STIs in Israel, we analysed notified data on infectious syphilis, gonorrhoea, Chlamydia trachomatis and HIV/AIDS during 1998-2007, by age(More)
BACKGROUND The present permanent deferral policy in Israel for MSM was established in 1977 and was based on the previous (now outdated) USA Food and Drug Administration standards. This study analyses epidemiological data regarding blood donations among MSM, in order to estimate the risk for HIV transfusion transmitted infection (TTI) if the policy is(More)