While that is not especially common, it is not unreasonable that, during your first year working as a pediatrician and being in close contact with your patients, you would not catch a cold or two. Every person’s immune system is different, which is also true for the extent of your exposure to sick patients. All medical facilities have strict safety and cleaning protocols to prevent the spread of germs which are followed in order to mitigate the risk of spreading disease. It’s a noble profession, and in most cases, I have seen the rewards of the job outweigh the risks. Best of luck to you!