Another vaccine, called Td, protects against 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 never gotten Tdap before. Tdap may also be given after a severe cut or burn to prevent tetanus infection.
The drying process may take up to one month. Keep the gourds in a cool, well-ventilated area and check them every few days. Remove any moisture and mold. If a soft spot forms, discard the gourd. When you hear the seeds rattle inside, it means the gourds are completely dry.
gourd_friends(z5/6 IL) I don't have a clue as to how long it might last. I've heard of a few pumpkins drying out, and becoming sort of a hard shell, but that's very rare. Pick it up, carefully, and notice whether it is as heavy as it was last fall.