Over half of working nurses think their wards are "dangerously unsafe" because of low staffing levels all or some of the time, according to a snapshot survey.
The poll carried out for the Nursing Times magazine found 57% of the 526 nurses questioned believed their ward was dangerous for patients because there were too few staff.
A further 39% of nurses said staffing levels had worsened where they work over the last 12 months.
The findings come a year of the Francis Report into the failings at Stafford Hospital was published, after hundreds of people died needlessly due to neglect.
One nurse told the magazine: "Although my organisation has been recruiting more nursing staff they have been inexperienced and have had to be supervised, so in some cases have made matters harder."
More top news
The Golden Globes nominations have been revealed with the Shape Of Water leading the field with seven nods, including best picture.
The Met Office has extended its yellow weather warnings for snow and ice to cover vast swathes of the country.
King's College Hospital has been put into special measures after its chairman Lord Kerslake resigned in protests at government funding.