Lucy Letby has been convicted of murdering seven babies and attempting to kill six others at a hospital neonatal unit.Prosecutors said Letby, 33, was a "calculated opportunist" who used the vulnerabilities of premature and sick infants to camouflage her acts.In 2015 and 2016, there was a significant rise in the numbers of babies who suffered serious and unexpected collapses in the neonatal unit at the Countess of Chester Hospital.

Lucy Letby has been convicted of murdering seven babies and attempting to kill six others at a hospital neonatal unit.Prosecutors said Letby, 33, was a "calculated opportunist" who used the vulnerabilities of premature and sick infants to camouflage her acts.In 2015 and 2016, there was a significant rise in the numbers of babies who suffered serious and unexpected collapses in the neonatal unit at the Countess of Chester Hospital.