Signs and Symptoms of Chikungunya Fever

Case Definition of Chikungunya Fever Suspect Case of CHK
  • Acute onset
  • High fever of less than 7 days duration
  • Severe headache
  • Myalgia
  • Severe Arthralgia
  • With or without rash
Probable Case
  • Suspect case of CHK
  • High vector density
  • Presence of confirmed case of CHK in the area
Confirmed Case Isolation of virus from blood in early phase Serological test for IgM antibody after 5th day of illness Demonstration of 4 fold or greater rise in IgG antibodies in paired sera Who is Commonly Affected? The disease affects all age groups.