The influence of influenza virus infections on the development of tuberculosis

RA de Paus, R van Crevel, Ruud Beek, E Sahiratmadja, B Alisjahbana, S Marzuki, Guus Rimmelzwaan, JT van Dissel, THM Ottenhoff, E van de Vosse

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Abstract

Recently, it was shown that interferon-gamma mediated immune responses, which play a major role in the control of infection with Mycobacterium tuberculosis (Mtb), can be inhibited by type I interferons. Since type I interferons are abundantly induced during viral infections, we hypothesized that infections with influenza viruses might play a role in the development of active TB disease either directly after exposure to Mtb or through reactivation of latent Mtb infection. To explore this hypothesis we investigated in a retrospective study whether newly diagnosed adult tuberculosis patients from Indonesia had had recent influenza infection. Plasma samples from TB patients and controls were assayed for antibodies against two subtypes of at that time relevant, seasonal influenza A viruses. Overall, no correlation was observed with the presence of antibodies and manifest tuberculosis. Still, antibody titers against circulating A/H3N2 influenza virus were slightly enhanced in tuberculosis patients as compared to controls, and highest in cases of advanced tuberculosis. This suggests that tuberculosis patients were recently infected with influenza, before clinical manifestation of the disease. Alternatively, the production of antibodies and susceptibility to tuberculosis may be influenced by a common confounding factor, for example the ability of patients to induce interferon-a. We conclude that in an endemic country like Indonesia, an influenza virus infection is not a major determinant for developing clinically manifest tuberculosis. (C) 2013 Elsevier Ltd. All rights reserved.
Original languageUndefined/Unknown
Pages (from-to)338-342
Number of pages5
JournalTuberculosis
Volume93
Issue number3
DOIs
Publication statusPublished - 2013

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  • EMC MM-04-27-01

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