I have 3 almost three year old Hens. I have noted one egg having strange issues with bulls eye soft tip. wasnt sure which hen was doing it. However as of today all three have very messed up eggs. The pictures of IB eggs look like the ones I found today. So now I have a bigger problem. I bought 6 new chicks 5 weeks ago at TS. So I need some guidance OOHH and the babies are housed seperate. Have not shared living space or food and water with the 3 older girls. 1) Should I just vaccinate the chicks as a precaution? If so, when and how often? 2) I live in MS. Is there a way to know what vax to buy and where? 3) How do I treat my 3 older hens now? I have had really crappy luck with chickens. Im just so sad. At this point eggs are only a second concern. I just want to save my flock. ANY help is much apprecatied!