Microbiology Which of the following viruses produce disease or sequelae that is/are more severe if the infection occurs at a very young age? A Epstein-Barr virus B Hepatitis B virus C Measles virus D Poliovirus 💡 Explanation Which of the following viruses produce disease or sequelae that is/are more severe if the infection occurs at a very young age? ✓ Correct Answer: B. Hepatitis B virus