Published on : Saturday, September 1, 2018
The pair, who have not been named, fell ill during their stay in the Red Sea resort of Hurghada.
They were among the guests evacuated from the Steigenberger Aqua Magic hotel after John and Susan Cooper died suddenly on 21 August.
They have apparently been told by an environmental health officer that samples showed they were suffering from the bacterial infection.
Shigella is a highly infectious condition which can cause diarrhoea and stomach cramps, and is a common cause of food poisoning. The Chief executive Peter Fankhauser previously confirmed that 13 customers had food poisoning but were not in a serious condition. Mr Fankhauser flew to Cairo to discuss the deaths with prime minister Dr Mostafa Madbouly and minister of tourism Rania Al-Mashat.