I just want to see if I'm understanding this right.
Can you give the exact dates of the shots given?
So two sets were given in Nov. when she was less than 12 weeks old and then nothing until Feb.?
Which ones were given in Feb? What dates?
Corona and lepto are very controversial and should only be used if your Yorkie is at quite a bit of risk of getting the disease. It should not be given when they are so young and it is better to not give it in a combo shot.