True/False: Most humans that become infected with West Nile virus are asymptomatic

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the TEDA Emerging and Exotic Diseases of Animals Exam with our interactive quizzes. Challenge yourself with multiple choice questions and detailed explanations to enhance your learning and boost your confidence for the exam!

Multiple Choice

True/False: Most humans that become infected with West Nile virus are asymptomatic

Explanation:
Most people infected with West Nile virus do not develop noticeable illness. In outbreaks and serosurveys, about 80% of infections are asymptomatic. A smaller portion causes mild West Nile fever with fever, headache, and malaise, and even fewer (less than about 1%) progress to severe neuroinvasive disease such as meningitis or encephalitis. This pattern reflects that many exposures lead to subclinical infections, while a small fraction trigger symptoms or CNS involvement, with higher risk for older individuals and those with weakened immune systems. So the statement is true.

Most people infected with West Nile virus do not develop noticeable illness. In outbreaks and serosurveys, about 80% of infections are asymptomatic. A smaller portion causes mild West Nile fever with fever, headache, and malaise, and even fewer (less than about 1%) progress to severe neuroinvasive disease such as meningitis or encephalitis. This pattern reflects that many exposures lead to subclinical infections, while a small fraction trigger symptoms or CNS involvement, with higher risk for older individuals and those with weakened immune systems. So the statement is true.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy