3 weeks ago we lost a couple newly weaned pigs . We had one posted , and it was determined to be streptococcus. Rest had diarrhea.
We did 2 sets of 3 days penn per our vet , and the rest cleared up

Now, 3 weeks later , lost another last night , with another showing the weak symptoms, not eating, slow moving lethargic . I gave 2 cc pen and 1 banamine to that one . It didn’t fight during the shot
The one that died, I gave 2cc penn when I got home after work , it did a “ convulsion flip over “ and died in front of me.

These have been in the same gilt pen . Barrow pen next to them appear fine .

We are at a loss . Now we’re worried which one’s next . All we can come back to is the strep