Hello
Dengue fever is diagnosed when its pathogens present in blood film i.e. serology test .
There develop decrease in platelets count .
Normal platelet counts is 15000-450000 cmm .
Usually in many diseases platelets also decreases as in
malaria but recovers within a short period .
As you mentioned that your son is having high grade fever 102-103 F ,so such
high fever may be due to malaria and so decrease in platelets .
So for this get in blood examination for malarial parasites .
If malaria is positive and platelets are down ,need not to worry .
Take simple treatment for malaria .
In dengue first 5-6 days patient remains high ,while there after fever subside and patient feels intense headache and generalized
body pain .
Get in platelets examination ,if it comes If needed intravenous platelets are advised ,otherwise recover itself.
Now a day DENGUE is not a big problem.
Plenty of fluid and
liquid diet with
tylenol are sufficient.
Good luck.