Nurse Lucy Letby went salsa dancing the night after alleged attempted murder of baby boy

Lucy Letby (pictured) denies seven counts of murder and 15 counts of attempted murder. Credit: SWNS

A nurse accused of the murder and attempted murder of infants in her care went salsa dancing the night after the alleged attempted murder of a baby boy, a court has heard.

Lucy Letby sent a message to a colleague asking if she was going to a salsa class the day after the alleged attempted murder of an infant, known as Child F.

Letby, from Hereford, is said to have intentionally added insulin to the Child F's intravenous feed bag, less than 24 hours after she allegedly murdered his twin brother, Child E, on the neo-natal unit of the Countess of Chester Hospital.

Jurors at Manchester Crown Court were told Child F’s heart rate surged and his blood sugars dropped dangerously low after the feed started shortly after midnight on 4 August 2015.

Child F's parents were "keen" to have him moved from the hospital earlier in the day after the death of their son, Child E, on the previous night shift but were told no transport was available.

After the night shift in which Letby is alleged to have poisoned Child F, the defendant messaged a colleague, who cannot be named for legal reasons, about the infant’s low blood sugars.

“Something is not right… he’s a worry", she wrote.

Letby, 32, then messaged another colleague, Minna Lappalainen, later in the evening of 5 August.

“Are you going to salsa tonite?”, she messaged.

"Should do really as I have not been for ages. Meet at TF 2020?”, Ms Lappalainen replied.

Letby responded with an OK emoji.

"Need to try and find some post nites energy", Letby added.

"Don’t have to stay late.", Ms Lappalainen responded.

Letby then replied "hasta luego".

Lucy Letby worked at the Countess of Chester Hospital. Credit: PA

The nursing colleague, who cannot be identified, later messaged Letby from the hospital to say Child F was “a bit more stable” and medics were “trying various tests to try to find answers”.

Letby replied: “Oh dear. Thanks for letting me know.”

Her colleague said: “He’s defo better tho. Looks well, handling fine.”

Letby later asked: “Wonder if he has an endocrine problem then. Hope they can get to bottom of it.

“On way home from salsa with Minna.

“Feel better now I’ve been out.”

The court heard the defendant had a house-viewing appointment the following day.

Child F went on to recover in the days that followed the alleged sabotage on the night shift.

His elder brother, Child E, born a minute earlier, is alleged to have been killed with a fatal injection of air into his bloodstream.

Jurors have heard Letby is also said to have attacked another set of twins, her first two alleged victims, in June 2015.

She is said to have murdered Child A by administering air into his bloodstream and then attempted to murder his sister, Child B, on the following night shift, by using the same method.

Letby denies the murders of seven babies and the attempted murders of 10 others between June 2015 and June 2016.

The trial continues on Wednesday.