In the WHO dengue classification (2009), a patient presenting with fever, abdominal pain, persistent vomiting, clinical fluid accumulation, and platelet count 85,000/mm³ is classified as:
- A Dengue with warning signs ✓
- B Dengue without warning signs
- C Severe dengue
- D Dengue hemorrhagic fever Grade II
Explanation
The 2009 WHO dengue classification has three categories: dengue without warning signs, dengue with warning signs, and severe dengue. Warning signs include: abdominal pain/tenderness, persistent vomiting, clinical fluid accumulation, mucosal bleeding, lethargy/restlessness, liver enlargement >2 cm, and rising haematocrit with rapid fall in platelet count. This patient has abdominal pain, persistent vomiting, and fluid accumulation — meeting criteria for 'dengue with warning signs.' The older 1997 WHO classification (DHF Grades I–IV) has been largely replaced, though Grade II (spontaneous bleeding) appears in older literature.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.