St. Louis Encephalitis is deadliest among which age group?

St. Louis Encephalitis is deadliest among which age group?

• A. Under 10
• B. 20 to 40
• C. 50+
• D. 70+

Answer: (C)

St. Louis encephalitis tends to cause more severe disease and higher death rates in older adults. As people age, their immune response can be less robust and they’re more likely to have chronic health conditions that complicate recovery from encephalitis, making outcomes worse compared to children or younger adults who often have milder illness. Among the age groups listed, those aged 50 and older show a noticeably higher risk of fatal neuroinvasive disease than younger groups, so the 50+ category best represents the group most likely to die from this infection.

St. Louis encephalitis tends to cause more severe disease and higher death rates in older adults. As people age, their immune response can be less robust and they’re more likely to have chronic health conditions that complicate recovery from encephalitis, making outcomes worse compared to children or younger adults who often have milder illness. Among the age groups listed, those aged 50 and older show a noticeably higher risk of fatal neuroinvasive disease than younger groups, so the 50+ category best represents the group most likely to die from this infection.