A nurse is discussing risks for infection with the parent of an infant. Which of the following should the nurse include?

Choice A reason: Infants have immature immune systems, with underdeveloped adaptive immunity, increasing susceptibility to infections. Limited antibody production and weaker cellular responses make them vulnerable to pathogens, necessitating strict hygiene and timely vaccinations to protect against common infectious diseases in early life. Choice B reason: Pediatric provider visits can increase infection risk in healthcare settings due to exposure to pathogens from other patients. Nosocomial infections are a concern, especially for infants with immature immunity, making this statement incorrect as it underestimates healthcare-associated infection risks. Choice C reason: Delaying vaccines increases infection risk, as infants miss timely protection against diseases like measles or pertussis. Vaccines stimulate immunity, reducing susceptibility to pathogens. Delaying them leaves infants vulnerable, particularly with immature immune systems, making this statement factually incorrect. Choice D reason: Handwashing for 10 seconds is insufficient to reduce infection risk. Guidelines recommend 20 seconds to effectively remove pathogens. Inadequate hand hygiene increases the risk of transmitting bacteria or viruses to infants, whose immature immunity heightens susceptibility, making this advice suboptimal.