Samoa's measles vaccination rate has fallen way down, leading to an outbreak that has infected 3000 people and killed 39.

Small temporary increases in levels of particulate air pollution lead to small temporary increases in the rate of hospital admissions for heart attacks and other illnesses.

It suggests that larger long-term increases in levels of particulate air pollution lead to larger long-term increases in the rate of the same illnesses.

The study covered Americans enrolled in Medicare — that is, almost entirely those aged 65 and over. Whether the same would apply to younger people is not known.

The Tories have discussed with the US plans to let Big Pharma (and other drug companies) gouge on drugs for the NHS.

*My investigation into a US trade deal shows it really could cost the NHS millions.*

A leaderless movement in Italy sparks large protests against Salvini, sometimes bigger than his own campaign rallies.

How citizens of Michigan won the elimination of Republican gerrymandering.