Original title: The global burden of typhoid and paratyphoid fevers: a systematic analysis for the Global Burden of Disease Study 2017
The researchers estimated how many people got typhoid and paratyphoid fever, and how many died or lost healthy years because of them. They combined estimates for both diseases, then used models to divide cases between them. For deaths, they used death records where those records were complete enough, and a model of how the diseases progress elsewhere. They estimated 14.3 million cases and 135,900 deaths worldwide in 2017, both lower than in 1990.
Imagine sorting a mixed pile of laundry into two baskets, one for each person. You can count the whole pile, but you need clues to work out how much belongs in each basket. In this paper, the total pile is the combined number of typhoid and paratyphoid cases, and the clues help estimate each disease’s share.
The estimates show where typhoid and paratyphoid continue to cause illness, disability, and death, especially among children, older adults, and people in lower-income countries. They can help guide vaccine use and show why better water, sanitation, and disease tracking still matter.
These are model-based global estimates, and the methods differ depending on whether countries have sufficiently complete death records. The abstract does not report country-specific findings, detailed uncertainty by age or location, or how the estimates were checked against independent data.
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The global burden of typhoid and paratyphoid fevers: a systematic analysis for the Global Burden of Disease Study 2017 — Jeffrey D Stanaway, Robert C. Reiner, Brigette F. Blacker et al. — The Lancet Infectious Diseases — doi:10.1016/s1473-3099(18)30685-6
Abstract licence: CC BY
Explanation generated by Synthesis from the abstract — it is not the original paper.