Totally agree with mandragore. Coming in contact with MRSA in the general course of your day is actually v unlikely SA yes MRSA no.
Its the MR bit that causes the problem - Methicillin Resistant.
The truth about MRSA is very very rarely admitted and when it is people don't generally believe it.
The hospital will have released the girl to the care of her family because the family themeselves will have been assessed as low risk. Taking babies in to see her would not have been reccomended if she were still in hospital and if the babies mother had any idea of the true level of danger she had put her child in she would be having kittens about now.
I also have relatives who have previously worked on wards which have been very positive for MRSA and they had also not been fully informed of the risks.
I am not saying that you have been irresponsible, you made a descision based on a level of risk that you were informed about. Unfortunatley the level of risk in the situation you were in ( several people in one room by the sounds of it enclosed with a MRSA positive patient, recently come from a hospital environment) was several hundred times higher than you were led to believe it would be.
It has been proven in recent years that MRSA can enter the blood stream of young children via inhalation - a wound is not necessary.
Again I would like to say that I am not trying to be alarmist, merely alert to the true risk, but I would now watch your children carefully over the coming weeks and if you have any concerns act and push for a test to be carried out.
I will try to find the correct links for the last batch of info I was sent, I am notoriously poor at adding links but I will try so keep watching over the next couple of days. ( v busy week)
To quote Mandragore:
"People in the NHS are not being adequately educated about these bugs."
< unfortunatly all too true >
"I hope that nobody has been infected but it's impossible to rule it out. All you can do now is keep your fingers crossed, which is why we tried to advise you not to go in the first place."
Be watchful...