Welcome to This Week in Infectious Disease. This week we're covering 10 notable papers spanning practical hospital-based infection control, the intricacies of host-virus interactions, and the latest in global health epidemiology and policy. Let's dive in.

This week's papers:

1. Cost-effectiveness of Commercial or Traditional Fecal Microbiota Transplantation for Recurrent Clostridioides difficile Infection. — Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2026
2. SARS-CoV-2 variant booster vaccination and infection alter the breadth of the memory B cell repertoire. — Science translational medicine 2026
3. GPR15-guided CD8T regulatory cells control intestinal inflammation. — Nature 2026
4. Understanding sugar-sweetened beverage tax implementation globally: a 34-year, population-based observational study in 183 countries. — The Lancet. Global health 2026
5. Inclusion of young adolescents in policy development for new tuberculosis vaccines. — The Lancet. Global health 2026
6. Effectiveness of oral care for the prevention of non-ventilator hospital-acquired pneumonia (HAPPEN): a multicentre, stepped-wedge, cluster-randomised trial in Australia. — The Lancet. Infectious diseases 2026
7. Zoster Vaccination and Dementia: Interpreting the Signal and Testing the Mechanisms. — Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2026
8. Molecular Epidemiology to Decipher the Transmission Networks of MPOX in an Outbreak Scenario: Applications in Thailand during the 2023 Global Health Emergency. — The Journal of infectious diseases 2026
9. Implementing the commitments of the World Health Assembly kidney health resolution: a key opportunity to improve health for millions. — Lancet (London, England) 2026
10. Systematic discovery of pro- and anti-HIV host factors in primary human CD4+ T cells. — Cell 2026

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