There is a potential risk for causing cerebellar problems if a modified live vaccine containing panleukopenia virus is given prior to four weeks of age.
(a modified live vaccine; containing; panleukopenia virus) (a modified live vaccine containing panleukopenia virus; is given; T:prior to four weeks of age)
a modified live vaccine a modified live vaccine containing panleukopenia virus
containing is given
panleukopenia virus
T:prior to four weeks of age