Mild form on infectious bronchitis (NOT an emergency - resolved)

[Altairsky]

This happened a few weeks ago but maybe it's worth sharing.
I started my flock with 2 adult birds and then hatched everything else. I never added adult birds to my flock.
One of the 10 months old pullets started sneezing one evening.

- The next morning she had lack of appetite and didn't run around as much as she used to be. She also lost her voice and made a wheezing sound from time to time.
Isolating her was useless since if she had something everyone already have it.
No mucous, no swelling, no nothing. Eggs laid at the usual rate.
The only thing I did was keeping her and her sister close inside the coop because it was raining for the whole week and continuing so at least she was dried and I could better monitor her water and food. I added garlic and ACV in the water, though I don't think it made any difference but I report it for the sake of reporting.

- The day after, she was back to running around and eating with a lot of appetite, the egg she laid had a double layer of calcium and it appeared to have no bloom. Very grainy surface. She still was lacking voice.

- on 4th day, she again laid a glitchy egg with a lot of whitish calcium deposits. Still poor voice.

- on 5th day all was normal again, voice and eggs. No other bird had any symptom.

Since she had eggs involved in the symptoms, I was guessing a viral infection. Infectious Bronchitis tend to involve the mucous membranes of the respiratory tract, as well as the mucous membranes of the reproductive system, causing glitches in the calcium deposit on the egg surface.

What do you think? Is it even possible such mild case of IB?

 

[Eggcessive]

She may have just had something in the environment that has irritated her respiratory tract. How is the ventilation in your coop? Your hen may just be having some calcium deposits on her eggs. Infectious bronchitis lasts about 3-4 weeks, with constant sneezing every few minutes around the clock. It usually passes to all other birds over a few weeks. It does cause problems with eggs and the reproductive tract. Corrugated or wrinkled eggs can be one sign. Later reproductive problems may be a result of IB. Hopefully, your hen doesn’t have it. My flock caught it from wild birds, and had the symptoms above.

 

[Altairsky]

I'm quite sure there is nothing in the coop or feed that might have caused issues since I didn't change food or litter. My coop is an open coop so there is a lot of ventilation.
She might still have not recovered her voice fully but that would be the only odd thing I can still notice after 10 days. I'll keep an eye on the other birds.

 

[Altairsky]

Just an update that might be interesting.
All the eggs she laid during the time she was sick, and for a week after, were sterile.
I'm sure it's not the rooster because the fertility rate on all the other hens eggs was 100% and she is bare backed so no doubt the rooster was having business.
I incubated a batch and only her older eggs and the very last one she laid before going completely broody were fertile.