Is it safe to take probiotics with steroids?

I have been taking probiotics for awhile, but I wanted to start taking a stronger one so I started searching around online. And i came across several articles that state it is UNSAFE for immune compromised people or people taking steroids, etc. to take probiotics! This is all news to me! Supposedly it can possibly cause a life threatening bacteria?? lactobacillus septicaemia
Can anyone shed some light?

It's really freaking me out! I wanted to start vsl#3 because I've heard so many good things about it, but now I'm concerned