<s>[INST] What are the features of dengue ​fever? [/INST] Dengue fever symptoms can take up to two weeks to develop from being bitten and the symptoms include: sudden onset of fever, headache, pain behind the eyes, joint and muscle pain, rash, nausea and vomiting. Severe or complicated dengue fever is uncommon but can occur in the form of dengue haemorrhagic fever and dengue shock syndrome. This is more common in the young and elderly. Source: SASTM ORG. Link: https://sastm.org.za/2023/03/16/dengue-faq/. Field: Infectious Disease. Disease: Dengue </s>