Fiance and i are in our first year of chickendom, and i was doing some vaccine research. We are doing a mix of hatching and buying chicks. The bought chicks will have been givem Mareks vaccines. In my research i found that a case of newcastles was found within a 2 hour radius of me. Now i dont know if i should vaccinate our hatched chicks for Mareks and Newcastles and the shipped chicks for Newcastles or not. What should i do?