When the scale of the tuberculosis (TB) epidemic was highlighted by its declaration as a "Global Emergency" by WHO in 1993, it was envisaged that the efficient use of existing tools would result in a progressive decline towards eradication. This has not occurred. At the current pace of decline in TB incidence the Millennium objective to eradicate it by 2050 will not be met. Predictions of epidemiological models were inaccurate and current control programs and technologies have shown their limitations to control the transmission of the disease. To overcome these limitations we need a technological, methodological and conceptual leap forward that can reveal the unknowns of TB epidemiology. I propose whole genome sequencing (WGS) as the technology that can mediate this advance. While WGS has been applied mostly to retrospective datasets I propose to use it in prospective samples from a lowburden region at a population scale. Genome information will fill the gap between epidemiology and evolution to have a direct impact on public health. This will allow to develop innovative methodologies to describe transmission at an unprecedented resolution and as a consequence to differentiate among risks factors associated to the bacteria, the host, the environment and their interactions. Elucidation of these factors will lead to better.

ERC-2014-STG