Chikungunya

Chikungunya Facts

  1. Chikungunya is a viral disease.
  2. Chikungunya is caused by an Arborvirus, belongs to the genus Alphavirus under the Togaviridae family.
  3. The virus is transmitted to human by infected Aedes mosquitoes, Aedes albopictus in the rural area and Aedes aegypti in the urban area.
  4. The urban outbreaks are sporadic but explosive in nature.
  5. It then disappears and reappears at irregular intervals.
  6. The incubation period of the disease is 2 to 4 days.
  7. The symptoms is less severe and fewer in children than adults.
  8. Infected patients manifest sudden onset of fever, chills, severe arthralgia and headache.
  9. Patients also have maculopapular rash mostly in trunk.
  10. Migratory polyarthritis (commonly swelling and reddening) occurs in 70 % of cases and mainly affected the small joints.
  11. They may also manifest photophobia, anorexia, nausea, conjunctival injection and abdominal pain.
  12. The acute illness usually last for 5 to 7 days.
  13. Chikungunya has not been reported causing severe haemorrhagic manifestation or death.
  14. Older patients usually continue to suffer recurrent joint pain and effusion for several years.
  15. Chikungunya infection may be mistaken for dengue and / or West Nile disease.
  16. Provisional diagnosis is often made based on the clinical features.
  17. Acute or viraemic phase serum samples collected within 2 to 4 days of onset have yielded positive virus isolates and detection of viral nucleic acids.
  18. Paired sera drawn 1 to 3 weeks apart will demonstrate rising antibody titre.
  19. Rapid diagnosis can be used to detect Chikungunya antibody (IgM) after 5 days of onset i.e. ELISA, immunofluorescene etc.
  20. Reverse transcriptase polymerase chain reaction (RT-PCR) tests may yield diagnoses based on samples without detectable antibodies and may also provide genetic information of the virus.
  21. The disease is self-limiting.
  22. There is no specific treatment or vaccine for Chikungunya, patients are only given symptomatic or supportive treatment.
  23. To avoid further transmission, patients who is in the viraemic phase (first 4 days of onset) should be protected from mosquito bites especially from Aedes species.
  24. Aedes mosquito feeding time is during dawn (5.00 am to 8.00 am) and dust (5.00 pm to 8.00 pm).

I think most people will concern about the progress of disease and the treatment.. only the medical field ppl will like to know other details.. hehe

So, Chikungunya is a viral disease with symptoms almost same like Dengue Fever with no specific treatment..

From Dr Zul: ” Dulu saya medical student pun kena dengue, admit buat apa? balik minum banyak banyak air la.. masuk ward pun IV drip je~”

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About LWJ

A doctor in Hospital Sultanah Aminah Johor Bahru (HSAJB).