Estudio de contactos según círculos concéntricos en un caso de tuberculosis laríngea

Godoy, Pere; Torres, Joan; Otal, José Manuel de Antonio; Gort, Ana M.; Bach, Pilar; Falguera, Miquel

doi:10.1016/j.gaceta.2012.10.006

Cited by 1 publication

(5 citation statements)

References 10 publications

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“…Through interviews with the bars’ owners, 58 habitual customers were located and their possible exposure evaluated. The global prevalence of LTBI observed in customers of the three bars (51·7%) was high and similar to that observed in other investigations [13, 14, 24, 25]. Bars are very popular establishments in Spain and should be evaluated and, if possible, studied in contact investigations by applying a social network approach where necessary.…”

Section: Discussionsupporting

confidence: 84%

“…There is considerable evidence about the presence of customers affected by TB in bars [13, 14, 24–27]. The investigation confirmed that the index patient had spent an average of 6 h a week in three bars in his neighbourhood.…”

Section: Discussionmentioning

confidence: 61%

“…Some alarm was generated in these places, and had to be addressed by specific efforts at communication. Due to these circumstances, some persons may have been classified as having a higher risk when in fact they had a lesser degree of exposure, which could have helped to reduce the LTBI prevalence observed [13]. However, the prevalence observed in the fifth contact circle was still very high.…”

Section: Discussionmentioning

confidence: 99%

“…One of the secondary cases in the company caused two further cases in his children, aged 2 and 6 years, which also underlines how important it is to carry out investigations on a forward-looking and thorough basis so as to avoid transmission beyond the index case [19]. Two cases were detected in customers of the neighbourhood bars, showing that it is important to study these recreational areas and extend the studies to patients’ social networks [8, 13, 14].…”

Section: Discussionmentioning

confidence: 99%

“…Fear of the stigma attached to the illness is a barrier to the complete, in-depth investigation of contacts [12]. Bars are meeting points and areas of social interaction in which contact investigations in TB cases are difficult [13, 14]. The inability to identify and screen all at-risk contacts is one of the main reasons for new TB outbreaks [15].…”

Section: Introductionmentioning

confidence: 99%

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A highly transmissible tuberculosis outbreak: the importance of bars

et al. 2017

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The transmission of tuberculosis (TB) in bars is difficult to study. The objective was to describe a large TB outbreak in a company's bar and other leisure settings. A descriptive study of a TB outbreak was carried out. Contacts were studied in the index case's workplace bar (five circles of contacts) and other recreational areas (social network of three bars in the index case's neighbourhood). Chest X-rays were recommended to contacts with positive tuberculin skin tests (TST) (⩾5 mm). The risk of latent tuberculosis infection (LTBI) was determined using an adjusted odds ratio. The dose-response relationship was determined using the chi-square test for linear trend. We studied 316 contacts at the index case's workplace and detected five new cases of TB. The prevalence of LTBI was 57·9% (183/316) and was higher in the first circle, 96·0% (24/25), and lower in the fifth, 46·5% (20/43) (P < 0·0001). Among 58 contacts in the three neighbourhood bars, two TB cases were detected and the LTBI prevalence was 51·7% (30/58). Two children of one secondary TB company patient became ill. Bars may be transmission locations for TB and, as they are popular venues for social events, should be considered as potential areas of exposure.

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