Her partner Charlie Rowley, 45, is now conscious and in critical but stable condition.
In a statement Lorna Wilkinson, director of nursing at Salisbury District Hospital, said: "We have seen a small but significant improvement in the condition of Charlie Rowley".
Couple remains in critical condition after being poisoned by the same nerve agent as an ex-Russian spy.
In a statement, the distillery said: "Novichok Edition has been in development for some time, and was only named and released after the Skripals had recovered".
The family of a woman who died from Novichok poisoning have paid tribute to the mother-of-three who was 'generous to a fault'.
"I am hoping Charlie recovers and when he recovers he will be able to tell us and perhaps shed some light on it which will narrow our search dramatically".
Police have said the working theory is that their exposure was linked to the earlier Novichok attack in March on ex-Russian spy Sergei Skripal and his daughter Yulia in the city of Salisbury, who both survived despite extended hospitalisations.
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The UK government has blamed Russian Federation for the incident, but the country's authorities deny any involvement.
Her family said her death had been "devastating" for them.
NO traces of nerve agent have been found on a bus used by Dawn Sturgess and Charlie Rowley.
Basu added that there was no evidence to suggest the couple had visited any of the Salisbury sites that were decontaminated in the four months since the Skripals fell ill.
Residents in Amesbury and Salisbury are being warned not to pick up "any foreign object which could contain liquid or gel" in a new advisory following the death of Novichok victim Dawn Sturgess.
"This is particularly important as families are starting to prepare for their children's summer holidays and so I am asking that people are extra vigilant".
Central to the investigation is John Baker House, the supported-living accommodation where Ms Sturgess lived; Mr Rowley's home in Amesbury, and Salisbury's Queen Elizabeth Gardens, which remains cordoned off.