Onset of infectiousness explains differences in transmissibility across Mycobacterium tuberculosis lineages


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Date

2025-06

Publication Type

Journal Article

ETH Bibliography

yes

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Abstract

Mycobacterium tuberculosis complex (MTBC) lineages show substantial variability in virulence, but the epidemiological consequences of this variability have not been studied in detail. Here, we aimed for a lineage-specific epidemiological characterization by applying phylodynamic models to genomic data from different countries, representing the most abundant MTBC lineages. Our results suggest that all lineages are associated with similar durations and levels of infectiousness, resulting in similar reproductive numbers. However, L1 and L6 are associated with a delayed onset of infectiousness, leading to longer periods between subsequent transmission events. Together, our findings highlight the role of MTBC genetic diversity in tuberculosis disease progression and transmission.

Publication status

published

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Book title

Journal / series

Volume

51

Pages / Article No.

100821

Publisher

Elsevier

Event

Edition / version

Methods

Software

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Date created

Subject

Phylodynamics; Mycobacterium tuberculosis; Transmission

Organisational unit

Notes

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