Problems with DTaP and Tdap range from mild to severe; the good news is that severe problems (seizures, coma, brain damage, nerve problems, or severe allergic reactions) occur in less than one in 1 million vaccinations.
bunk (third-person singular simple present bunks, present participle bunking, simple past and past participle bunked) To fail to attend school or work without permission; to play truant (usually as in 'to bunk off').
Full Definition of COB. 1. [perhaps short for cobswan lead swan] : a male swan. 2. a dial English: a rounded mass, lump, or heap b: a mixture of unburnt clay and straw used especially for constructing walls of small houses in England.