Patient's question:
Just the other day, you sent her back to your hometown to be cared for, and her second dose of the triple vaccine is scheduled for October. However, the people there said that the vaccine 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, is it too late to give her this second dose, and will it still be effective? 2. What exactly does "triple vaccine" refer to? Is it the DTP (Diphtheria-Tetanus-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 on this principle: various pathogens are artificially treated to reduce their toxicity, then formulated into vaccines and injected into the body. This causes the person to experience a "light illness" for the first time, thereby producing additional antibodies. 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, ensuring that antibody levels remain consistently high to provide some protection against diseases.