I read the article you saw. I would never tell you not to worry and not to wash your hands after handling your birds, but I wouldn't obsess about it. When I had my birds tested for NPIP certification I had them tested for the type of salmonella that can be passed to humans, and they tested clean. It was an extra charge I was glad to pay - Kristy asked me if I planned to sell eggs, and I said I would like to down the road, but that in the meantime, WE eat the eggs, and I'd like that extra measure of confidence

Since then I have advertised eggs for sale for three months and have given away a lot of eggs and never sold a dozen, but I know they tested clean. That doesn't guarantee they're still clean, and I will have them tested again this year for it because I like to know rather than hope they're clean.
The likelihood of getting salmonella from your own backyard birds is pretty remote, but it is possible, so follow basic handwashing just as you would after handling raw chicken from the supermarket and you should be fine.
Judi