The 45-year-old man who was hospitalised following a Novichok attack in England has been discharged from hospital.
Police believe that Charlie Rowley and his partner Dawn Strugess collapsed at a house in Amesbury in Wiltshire on 30 June after they came into contact with a bottle containing the nerve agent.
Ms Strugess died in hospital on 8 July and a murder investigation was launched.
Lorna Wilkinson, director of nursing at Salisbury NHS Foundation Trust, said Public Health England has advised that Charlie Rowley poses no risk to the community.
She said: "Charlie has been through an appalling experience most of us could never imagine.
Ms Wilkinson added: "I would also like to reassure everyone that, despite many people seeking advice following these incidents, there have only ever been a total of five people who have been exposed to this nerve agent and admitted to hospital for treatment."
Wiltshire Police Chief Constable Kier Pritchard said: "The last few months have had an unprecedented impact on all the local emergency services and partner agencies and the response from all has been outstanding.
"Wiltshire Police will continue to co-ordinate activity with partner agencies at a local level to ensure that Mr Rowley continues to receive the support he needs in his ongoing recovery."