Pathogen natural history, epidemiological knowledge, human behavior and epidemic progression determine whether symptom screening and questionnaires are effective barriers to geographic spread of infection by travelers.

In large vaccine trials conducted in dengue-endemic Asia and Latin America, the CYD-TDV tetravalent dengue vaccine shows limited variation in intra-serotype efficacy in the target population for vaccination (>9 years).

The best papers provide evidence that can be used to make changes that improve the health and lives of people around the world.

Plasmodium falciparum kelch13 mutations that cause artemisinin resistant malaria in Southeast Asia show markedly different patterns of evolutionary selection in Africa.

The first comprehensive analysis of antigenic switching in the malaria-causing parasite Plasmodium falciparum provides new insights into the process that prevents individuals from acquiring immunity to the disease.

The burden of antimicrobial resistance in Thailand is deteriorating over time, and 19,122 deaths in the country in 2010 were excess deaths caused by multidrug-resistant bacterial infection.

The analysis of 18^th century Y. pestis genomes reveals a bacterial lineage that might be responsible for the 400-year period of European plague epidemics from the Renaissance through early modern times.

Malaria 'hotspots' can be identified that range in size from a few homesteads to a village, and it will be necessary to eliminate hotspots at varying scales as we progress towards eliminating malaria.

The global suitability for avian flu H5N1 in poultry is predicted and spatially cross-validated, highlighting areas where the disease can spread in the absence of prevention and control, and represent a public health threat.

Sequence changes in the pneumococcal genome explain most of the variability in duration of asymptomatic carriage with serotype, antibiotic resistance and prophage accounting for the largest effects.