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Unfortunately, this can lead to unknowingly spreading the infection to others

And, based on analysis of cases and neighborhood controls, controlling for the covariates included above and environmental factors including the number of households in the dwelling, the number of people in the household, the number of adults in the household, occupation, and ownership of house, current and past smokers were found to be significantly more likely to develop smear-positive pulmonary TB than never smokers

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A local regulatory T cell feedback circuit maintains immune homeostasis by pruning self-activated T cells