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Transforming the fight against tuberculosis: targeting catalysts of transmission.

Dowdy, David W; Azman, Andrew S; Kendall, Emily A; Mathema, Barun.
Clin Infect Dis; 59(8): 1123-9, 2014 Oct 15.
Artigo em Inglês | MEDLINE | Jul 2014 | ID: mdl-24982034
Resumo: The global tuberculosis control community has committed itself to ambitious 10-year targets. To meet these targets, biomedical advances alone will be insufficient; a more targeted public health tuberculosis strategy is also needed. We highlight the role of "tuberculosis transmission catalysts," defined as variabilities in human behavior, bacillary properties, and host physiology that fuel the propagation of active tuberculosis at the local level. These catalysts can be categorized as factors that increase contact rates, infectiousness, or host susceptibility. Different catalysts predominate in different epidemiological and sociopolitical settings, and public health approaches are likely to succeed only if they are tailored to target the major catalysts driving transmission in the corresponding community. We argue that global tuberculosis policy should move from a country-level focus to a strategy that prioritizes collection of data on key transmission catalysts at the local level followed by deployment of "catalyst-targeted" interventions, supported by strengthened health systems.