No of course I will remove the birds, of course. No one should be using that around live birds. But the fact is, Oxine AH without activation does not kill any viruses. For example, lets say you have a pigeon coop, and if one of the bird is infected with PPMV or newcastle disease and you found out about it. By using non activated oxine to clean the birds cage, it does nothing. The activated Oxine basically kills viruses by prevention of protein formation because Oxine (sodium chlorite forms Chlorine dioxide when activated, which is very soluble in water) Chlorine Di Oxide is the one that kills viruses. When non activated there is no chlorine di oxide. It does not interrupt anything on the internal survival of the virus or bacteria. It inhibts them sure, but it does not kill them. In your case, since it slowed down the spread of the pathogens, bird's internal immunity probably helped.
Some people posted that they spray non activated oxine diltued solution on their shoes to be safe, but sadly it does nothing at all.
I used to use it for that purpose, but now, I use Virkon-S, which comes in a tablet concentrate to make one pint in a spray bottle. One reason, really, is that it is cheaper to ship a small bottle of tablets than a gallon jug, weight-wise. I still believe that the non-activated has properties that benefit disease prevention or animal health organizations would not be recommending putting it in the waterers, but for heavy disinfecting after a breakout of disease, even I would activate it to disinfect a coop/barn, if I had any way to remove the birds from it for the cleaning (so far, no contagions here, though).