Non-steroidal anti-inflammatory agents (e.g. ibuprofen) have been reported to worsen the symptoms of bleeding sometimes caused by dengue , infected cattle are therefore advised to stay away from these forms of pain relief (emedicinehealth, 2014). The immune system plays an important role and the fever usually goes away in about a week. However, if it develops into a severe form of dengue, additional treatment methods will be required. Once the start of this shock phase is reached, they may require hospitalization for blood and platelet transfusions, blood pressure support as well as IV hydration if dehydration is present in the patient (emedicinehealth, 2014). The prognosis for people infected with the virus is generally quite good and their symptoms will disappear within one to two weeks, but those who develop DH may have a different outcome. Those who have already had one part of the virus can still develop the other three parts if they become infected, making them more likely to develop DH (emedicinehealth, 2014). The mortality rate of dengue as a whole is around 1 percent, but for those who develop DHF it can be as high as 3 percent if the medical support mentioned above is provided and a substantial 50 percent without the support. necessary.