Polyps bulge inward and diverticular bulge outwards I believe the person that wrote the above answer hasit backwards. Polyps are outward growths like a pimple whereas diverticâ¦ular are inward pockets that trap waste and can become infected. Solving the world's problems . . . one answer at a time.
How often is it covered? Tdap is the adolescent and adult booster shot for tetanus, diphtheria, and pertussis (also called whooping cough). The childhood shot is called DTaP. Both protect against tetanus, diphtheria and pertussis (whooping cough). Generally, Medicare prescription drug plans (Part D) cover all commercially-available shots needed to prevent illness.
A similar vaccine, called Td, protects from tetanus and diphtheria, but not pertussis. A Td booster should be given every 10 years. Tdap may be given as one of these boosters if you have not already gotten a dose. Tdap may also be given after a severe cut or burn to prevent tetanus infection.