Differences between Dengue and Chikungunya
Differences between Dengue and Chikungunya
Dengue and chikungunya are transmitted by the Aedes mosquito, a species that bites during daytime.
Dengue is the fever caused by the bite of Aedes aegypti whereas Chikungunya is caused by the bite of both Aedes albopictus and Aedes aegypti.
Differences between Dengue and Chikungunya are as follows
| Character | Dengue | Chikungunya |
| Causative agent | Dengue virus, belongs to Flaviviridea family and Flavivirus genus. | Chikungunya virus, belongs to Togaviridea family and alphvirus genus. |
| Primary vector | Aedes aegypti | Aedes albopictus |
| Incubation period | 4-7 days | 3-7days (range 1-12 days) |
| Disease duration | 4-7 weeks | 1-2 weeks |
| Symptoms | Fever, Joint pain, Headache, Rashes, Pain behind the eye | Fever, Joint pain, Headache, eye pain, Rashes |
| Joint pain and muscle pain | Muscle pain on the back, arms and legs. Joint pain on knees and shoulders. | Joint pains on hands and feet. Swelling is present and the pain is high in the morning. |
| Rashes | Rashes usually on face and limbs. | Rashes on trunk, limbs, face, palms and feet. |
| Arthritis | Absent | present |
| Hemorrhage | Yes | May be present or absent. |
| Shock | Yes | No |
| Clinical lab findings
|
Thrombocytopenia (<100,000/mm3), lymphopenia, neutropenia and elevated liver enzymes (ALT, AST); more severe signs with dengue hemorrhagic fever | Mild thrombocytopenia (>100,000 /mm3), lymphopenia, elevated liver enzymes (ALT, AST)
|
| Complications | Life threatening complications such as shock, breathing difficulty and heavy bleeding can occur. | Upto 10% of patients develop chronic joint pain. Neurological damage is possible, but rare. |
Differences between Dengue and Chikungunya
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