Patient's question:
The baby is 10 months old. At four and a half months, they had hand, foot, and mouth disease. Today, small rashes suddenly appeared on their hands, and I don't know if it's a sign of hand, foot, and mouth disease. The baby's temperature is normal.Doctor's answer:
Based on your remarks, it is recommended that you pay close attention and observe carefully. Having had hand, foot, and mouth disease once does not guarantee immunity from getting it again in the future; this is because there are over 20 different types of enteroviruses that can cause hand, foot, and mouth disease. Each infection only provides automatic immunity to one specific virus. When other prevalent viruses emerge, reinfection may occur. As a result, hand, foot, and mouth disease can lead to repeated infections in an individual multiple times, and it does not mean that having had it once grants lifelong automatic immunity.