Question

One of the common symptoms observed in people infected with Dengue fever is

• A. significant decrease in platelets count
• B. significant decrease in $RBC$ count
• C. significant increase in platelets count
• D. significant decrease in $WBC$ count

Answer 1

The correct option is A

significant decrease in platelets count

Significant decrease in $RBC$ count

● During dengue infection the immune system does not produce antibodies against the $RBC$, thus there will be no destruction of $RBCs$.

Significant decrease in $WBC$ count

● Antibodies are not formed against the $WB{C}^{\prime }s$. Thus the count of $WBC$ will not decrease.

Significant decrease in platelets count

● Immune system while making antibodies against the virus also synthesize antibodies which attach to the platelets.

● As the platelets reach the spleen the antibody coated platelets are destroyed.

Significant increase in platelets count

● The platelets are destroyed by the immune system so the number does not increase.

Final answer:

c.significant decrease in platelets count