Patient's question:
Just the other day, you sent her back to your hometown to be raised. The second dose of the triple vaccine is scheduled for October, but the people there said it can only be administered on odd months. I read somewhere that it should be given at 3 months, 4 months, and 5 months old, respectively. My doubts are: 1. According to the local regulations, will it be too late to give this second dose, and will it still be effective? 2. What exactly does "triple vaccine" refer to? Is it the DTP (Diphtheria, Tetanus, and Pertussis) vaccine?Doctor's answer:
After getting infected, the body produces antibodies, which generally can fight off the same disease a second time. Vaccines work based on this principle: various pathogens are artificially treated to reduce their toxicity, then made into vaccines and injected into the body. This causes the person to experience a "light illness" for the first time, thereby producing additional antibodies in the body. Compared to getting sick naturally, vaccination results in fewer antibodies being produced and a shorter duration of their effectiveness. Therefore, it is necessary to receive booster shots at regular intervals to enhance the preventive effect, maintaining a certain antibody level to provide some disease prevention and treatment benefits.