[Ladymom]

"L" is for lepto which is not a core vaccine and known to cause serious reactions in Yorkies and other small dogs.

We've got lots of information here that may answer your questions:

http://www.yorkietalk.com/forums/sic...n-vaccine.html

http://www.yorkietalk.com/forums/sic...ay-beware.html

http://www.yorkietalk.com/forums/yor...concerned.html

http://www.yorkietalk.com/forums/yor...-overview.html

http://www.yorkietalk.com/forums/yor...tz-2-10-a.html