epidemiology
3 stories tagged "epidemiology"
For 400 Years After the Black Death, Plague Kept Walking Back Into Europe on War Roads
Twenty-six sets of medieval teeth trace Yersinia pestis splitting into three branches around 1500, with the later lineages tracking the roads armies and refugees traveled. The pattern points to repeated re-introductions, plus some strains that may have dug in locally.
CancerYounger Generations Are Testing Biologically Older, and Early Cancer Is Tracking the Gap
By a nine-marker blood panel, Americans born in the 1990s scored biologically older than those born in the late 1960s did at the same age, and Washington University researchers found that accelerated aging tracked a higher risk of early-onset cancer.
Investigations97,000 Sibling Sets Later: Standard Air-Pollution Birth Studies Overshot One Risk and Buried Another
Comparing brothers and sisters born to the same mother stripped out many of the family-level confounders, and the scary preterm-birth links shrank while the growth-restriction link the conventional models kept underselling got stronger.