Dengue hemorrhagic fever most frequently results from
A. infection of a non-immune patient
B. infection of a recovered dengue patient with a different viral strain
C. infection with a particular viral strain
D. reinfection of a recovered dengue patient with the same viral strain
Answer:B
Dengue hemorrhagic fever most frequently results from
A. infection of a non-immune patient B. infection of a recovered dengue patient with a different viral strain C. infection with a particular viral strain D. reinfection of a recovered dengue patient with the same viral strain