Do Symptoms of the Same Enterovirus Vary Among Different Individuals? - Pediatrics

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The symptoms of enterovirus infections can indeed vary significantly among different individuals, even when they are infected with the same strain of the virus. This variability can be attributed to several factors, including the individual's age, immune system status, underlying health conditions, and genetic predispositions.
In your case, it appears that your child exhibited relatively mild symptoms, primarily a sore throat and fever, while you experienced more severe manifestations, including hand, foot, and mouth disease (HFMD) with significant blistering. This difference in symptom severity is not uncommon. For instance, children often have milder symptoms due to their developing immune systems, while adults may experience more pronounced symptoms due to a more robust immune response.
Regarding your question about whether your child could be reinfected with the same strain of the virus, it is generally unlikely for someone to be reinfected with the same strain of enterovirus shortly after recovery. The immune system typically develops antibodies against the specific strain of the virus, providing some level of protection. However, enteroviruses are a large family of viruses, and there are many different strains. Therefore, while your child may not get reinfected with the same strain, they could potentially be infected with a different strain in the future.

As for your breastfeeding situation, it is important to note that enteroviruses can be present in bodily fluids, including breast milk. However, the risk of transmission through breastfeeding is considered low. If you are experiencing symptoms of an enterovirus infection, it is advisable to maintain good hygiene practices, such as washing your hands frequently and avoiding close contact with your infant when possible, especially during active outbreaks of illness.
In summary, while the same enterovirus strain can cause varying symptoms in different individuals, your child is unlikely to be reinfected with the same strain shortly after recovery. However, they could be susceptible to other strains in the future. As for your breastfeeding, continue to practice good hygiene, and monitor your infant for any signs of illness. If you have concerns about your infant's health or the potential for transmission, consulting with a pediatrician is always a prudent step.