Hi, naxyph, and welcome to allnurses!
What kind of information do you need? The links I posted above give you specific information on the signs and symptoms of dengue. All care plans begin by knowing what your patient's signs and symptoms are. You can use those articles to help you with the assessment of your patient. That assessment is the first and most important step in writing a care plan.
There are two threads in the nursing student forums on how to put together care plans. You should read the posts on them. Then, if you still have a question, ask a more specific question so I can help you.