Some 26 people have been tested for the virus in Scotland but none have been positive.
Sharon Goldie, 44, is accused of causing the death of Robyn Goldie at their home in Lanarkshire.
Another nine people across the UK have also tested negative, it has been announced.
The Scottish Government earlier confirmed that five people were being examined.
The £850m Queen Elizabeth University Hospital has been plagued by problems since 2015.
Sophia Smith was just two weeks old when she died after contracting MRSA at the QEUH.