A study on the dangerous outbreak of Chikungunya in Chittagong, including a limited survey around that city of Bangladesh

Baishakhi Biswas, Sabrina Amin, M. Abul Kalam Azad, Motashen Billah, Mirfa Murad, Sraborni Chowdhury, Rajashree Roy, Sharmin Akter, Sanjida Alam


Background: The first major outbreak in Bangladesh was reported in 2008 in Rajshahi and Chapainawabgonj. It then re-emerged in 2013, 2014 and 2015 mostly in Dhaka and other parts of Bangladesh, with a notable outbreak in December 2016 according to a report. This is a statistical report on the data collected from chikungunya patients in some areas of Chittagong in relation to age, gender, location, weather and symptoms of the patients. The aim of the report is to assess the magnitude of the outbreak and an interest to identify the probable socio-environmental factors responsible for chikungunya in Chittagong.

Methods: Medical records were collected from well-established diagnostic laboratories, as well as, a limited survey on awareness of chikungunya was conducted from July to December, 2017. There were 188 clinically tested chikungunya cases in both genders ranging from 2-70 years of age.

Results: From the total chikungunya cases in the study area it has been found that the highest number of cases (25%) was found in the age group of 41-50 years, almost equally distributed in both genders. The lowest number of cases (5.3%) was from children below 10 years of age with males having only 3 positive cases and females having 7. Amongst the total present study population, 44.4% were suffering from chikungunya.

Conclusions: From our study we found that this outbreak took place in Chittagong mainly due to lack of awareness in the population. Educating the general population about its causes, effects, treatment and preventive methods is the best way to prevent future outbreak. 


Chikungunya, Diagnosis, Outbreak in Chittagong region, Symptoms

Full Text:



Chattogram, wiki. Wikipedia. Available at Accessed on 5 May 2018.

Anon. 2009-2017 climatemps, Chittagong Climate Chittagong Temperatures. Available at: http://www.chittagong. Accessed on 5 May 2018.

Anon., WHO 2018. WHO | Chikungunya. Available at: chikungunya/en/. Accessed on 6 February 2018.

Khatun S. An Outbreak of Chikungunya in Rural Bangladesh, 2011. PLOS Neglected Trop Dis. 2015:9.

Sing A. Chikungunya Fever: What to Know Health Xchange. Health 2016. Available at: outbreaks/chikungunya-fever-what-to-know. Accessed on 6 February 2018.

Ray P, Ratagiri VH, Kabra SK, Lodha R, Sharma S, Sharma BS, et al. Chikungunya infection in India: results of a prospective hospital based multi-centric study. PLoS One. 2012;7(2):e30025.

Anon S. Updated 2017. World Health Organization; fact sheet: chikunguniya. Available at: Accessed on 7 February 2018.

Kumar NP, Suresh A, Vanamail P, Sabesan S, Krishnamoorthy KG, Mathew J, et al. Chikungunya virus outbreak in Kerala, India, 2007: a seroprevalence study. Memórias do Instituto Oswaldo Cruz. 2011;106(8):912-6.

Mayoclinic. Mayo Medical Laboratories. Available at: testcatalog/Clinical+and+Interpretive/643. Accessed on 7 February 2008.

Hardin DM. Chikungunya fever patient. 2015. Available at: chikungunya-fever-pro. Accessed on 8 February2018.

Dubrulle M, Mousson L, Moutailler S, Vazeille M, Failloux AB. Chikungunya virus and Aedes mosquitoes: saliva is infectious as soon as two days after oral infection. PLoS One. 2009;4(6):e5895.

Hossain MS, Hasan MM, Islam MS, Islam S, Mozaffor M, Khan MAS, et al. Chikungunya outbreak (2017) in Bangladesh: Clinical profile, economic impact and quality of life during the acute phase of the disease. PLoS Negl Trop Dis. 2018;12(6):e0006561.

Khatun S, Chakraborty A, Rahman M, Banu NN, Rahman MM, Hasan SMM, et al. An outbreak of chikungunya in rural Bangladesh, 2011. PLoS Negl Trop Dis. 2015;9:e0003907.

Sharmin S, Viennet E, Glass K, Harley D. The emergence of dengue in Bangladesh: epidemiology, challenges and future disease risk. Trans R Soc Trop Med Hyg. 2015;109:619-27.

Chretien JP, Anyamba A, Bedno SA, Breiman RF, Sang R, Sergon K, et al. Drought-associated chikungunya emergence along coastal East Africa. Am J Trop Med Hyg. 2007;76(3):405-7.

Sergon K, Yahaya AA, Brown J, Bedja SA, Mlindasse M. Seroprevalence of Chikungunya virus infection on Grande Comore Island, union of the Comoros, 2005. Am J Trop Med Hyg. 2007;76:1189-93.

Sissoko D, Malvy D, Giry C, Delmas G, Paquet C, Gabrie P, et al. Outbreak of Chikungunya fever in Mayotte, Comoros archipelago, 2005-2006. Trans Royal Soci Trop Med Hyg. 2008;102(8):780-6.

Sissoko D, Moendandze A, Malvy D, Giry C, Ezzedine K, Solet JL, et al. Seroprevalence and risk factors of chikungunya virus infection in Mayotte, Indian Ocean, 2005-2006: a population-based survey. PLoS ONE. 2008;3(8):e3066.

Hassan R, Rahman MM, Moniruzzaman M, Rahim A, Barua S, Biswas R, et al. Chikungunya: an emerging infection in Bangladesh: a case series. J Med Case Rep. 2014;8:67.