A sneeze here or there can simply be from dust. If she begins to sniffle or cough, then obviously it is illness.
At her age, the stress of moving would reduce her immune system leaving her more vulnerable to new germs that your flock have built resistance to.
However a sneeze or two can be harmless. Just watch her. If she begins coughing or wheezing in earnest, then suspect new illness or possibly latent chronic respiratory disease which can kick in with stress.
Keep us updated.
At her age, the stress of moving would reduce her immune system leaving her more vulnerable to new germs that your flock have built resistance to.
However a sneeze or two can be harmless. Just watch her. If she begins coughing or wheezing in earnest, then suspect new illness or possibly latent chronic respiratory disease which can kick in with stress.
Keep us updated.