Dengue hemorrhagic fever is actuallya. an immediate immune reaction to the initial infection with dengue virusb. a hyperimmune response to reinfection with dengue virusc. an autoimmune diseased. an antibody-antigen complex reactione. the chronic carrier state associated with dengue virus infection

The correct answer is option A. an immediate immune reaction to the initial infection with dengue virus.

Explanation:

The dengue is the virus infected disease that is caused by dengue virus and transmitted by the aedes mosquito. The dengue fever and dengue hemorrhagic fever are two type of dengue. DHF or dengue hemorrhagic fever includes second stage of the fever with plasma leakage from endothelium of blood vessels.

Thus, the correct answer is option A. an immediate immune reaction to the initial infection with dengue virus.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

condensation. good luck!