Toxoplasmosis, now what?

[Beccat05]

Hey guys,
We incubating our first ever batch of ducklings and only one made it to hatch and then had clear signs of toxoplasmosis and was suffering.
My question is what do I do now? We don't have cats which is what Google tells me it commonly comes from and our flock of 5 ducks seems perfectly normal. I'm having a hard time finding any info. Can ducks be carriers without symptoms? Does this mean I shouldn't try to hatch any more? I have baby geese that havent been introduced to the rest yet, are they at risk now?
Thanks in advance

 

[Beccat05]

I should also mention that this "batch" was only 4 eggs as I was nervous to put a lot in

 

[casportpony]

Sorry no one replied. What did you end up doing?