Seroprevalence of chikungunya cases in a tertiary-care hospital in Ahmedabad

Abstract

and Kerala. [4] All ages and both sexes were affected. [4] The disease is characterized by acute fever with or without chills, headache, nausea, abdominal pain, photophobia, conjunctival injection, skin rash, and disabling arthralgia. The incubation period ranges between 2 and 10 days. The disease usually affects adults as seen in the 2006 epidemic: of the 333 seropositive patients for chikungunya infection, 299 (90%) were aged older than 15 years. [5] Chikungunya originated from the word "kungunyala" (meaning "that which bends up"). The patient with this disease develops a stooped posture because of severe arthritis, typically affecting the wrists, hands, ankles, and feet. The fever and skin rash are short-lasting, but the joint pains may recur or linger for a long Background: Chikungunya is viral fever with the main symptom of joints pain for prolong duration. It persists as major public health problem till date. Objective: To know the seroprevalence, clinical presentation, and seasonal trends of chikungunya infection in a tertiary-care hospital in Ahmedabad, Gujarat, India. Materials and Methods: A retrospective observational study was conducted at a tertiary-care hospital in Ahmedabad. Totally, 2193 blood samples were received from different wards from suspected cases of chikungunya fever and tested for IgM antibody using ELISA in civil hospital Ahmedabad for duration of 1 year (September 2013 to August 2014). Result: Of the 2193 cases tested, 724 (33.01%) were positive for IgM antibodies; 33.28% were aged younger than 30 years and 66.71% older than 30 years. All presented with fever (100%), followed by joint pain, headache, body ache, joint swelling, and rash (93.6%, 73%, 39.7%, and 17.4%, respectively). Maximum cases were reported during September to January (31.98%, 35%, 36.41%, 43.34%, and 42.18%, respectively), with male subjects of 41.02% and female subjects, 58.97%. Conclusion: Seroprevalence of chikungunya in our study (33.01%), which was high in late monsoon and winter, suggests that it continues to be a major health problem in our setup and indicates the need of appropriate strategies to reduce the severity of disease.

Seroprevalence of Chikungunya among Febrile Patients in a Tertiary Care Hospital

“…The states that first affected were Andhra Pradesh, Karnataka, Maharashtra, Madhya Pradesh, Tamil Nadu, Gujarat, and Kerala. All ages and both sexes were affected (Sakhiya et al, 2015). Resurgence of chikungunya has been attributed to various factors including globalization, increase in the mosquito population, loss of herd immunity and the mutation A226V in the E1 gene causing a significant increase in CHIKV infectivity for Ae.…”

Estimating the seroprevalence of chikungunya virus exposure in Shimoga district, Karnataka state: A hospital‐based study during 2014‐2018

“…However, the low prevalence of circulating chikungunya‐neutralizing antibodies in the study area indicates the potential for another major chikungunya outbreak. A retrospective observational study conducted from September 2013 to August 2014 at a tertiary care hospital in Ahmedabad reported an IgM seroprevalence of 33.01% among 2193 cases . Similar studies conducted in North Karnataka and Ballari also reported higher estimated seroprevalence rates of 23.1% and 21.8%, respectively.…”

Burden of Chikungunya and its seasonal trend in south Karnataka- A study in a tertiary care centre

“…1,5,12,13 while some other studies have reported higher seroprevalence. [14][15][16][17][18][19][20][21][22] In our study maximum positive cases of chikungunya were seen in the age group of 16-30 years i.e. (35.77%) followed by 31-45 years i.e.…”

“…Certain studies showed highest number of cases during July to December (Ahmedabad) 22 September-December (Lucknow) 12 November (Varanasi) 5 sept-nove (Mumbai) 14 sep-dec (Ahmedabad) 15 sep-jan (Ahmedabad). 16 These seasonal peaks emphasize the need to create public awareness and undertake necessary vector control measures including improvements in sanitation and hygiene during pre monsoon period.…”