TY - JOUR
T1 - Severe dengue epidemic, Sri Lanka, 2017
AU - Tissera, Hasitha A.
AU - Jayamanne, Bernard D.W.
AU - Raut, Rajendra
AU - Janaki, Sakunthala M.D.
AU - Tozan, Yesim
AU - Samaraweera, Preshila C.
AU - Liyanage, Prasad
AU - Ghouse, Azhar
AU - Rodrigo, Chaturaka
AU - de Silva, Aravinda M.
AU - Fernando, Sumadhya D.
N1 - Funding Information:
689 We sincerely appreciate the support extended by Nimalka Pannila Hetti, Anoja Dheerasinghe, Mizaya Cader, Sunith Kumarapperuma, Iroshini Abeysekara, Thanuja Rathnayaka, and Indika Weerasinghe. We gratefully acknowledge the technical and nontechnical staff of the National Dengue Control Unit. We appreciate the work of Sampath Weerakoon and Dinusha Perera.
Publisher Copyright:
© 2020 Centers for Disease Control and Prevention (CDC). All rights reserved.
PY - 2020/4
Y1 - 2020/4
N2 - In 2017, a dengue epidemic of unexpected magnitude occurred in Sri Lanka. A total of 186,101 suspected cases and 440 dengue-related deaths occurred. We conducted a comprehensive analysis of this epidemic by comparing national surveillance data for 2017 with data from the preceding 5 years. In all Sri Lanka districts, dengue incidence in 2017 increased significantly over incidence during the previous 5 years. Older schoolchildren and young adults were more clinically symptomatic than those at extremes of age. Limited virologic surveillance showed the dominant circulating variant was dengue virus type 2 cosmopolitan genotype in the most affected district. One quarter of total annual cases were reported 5 weeks after the southwest monsoon started. Changes in vector abundance were not predictive of the increased incidence. Direct government expenditures on dengue control activities in 2017 were US $12.7 million. The lessons learned from this outbreak are useful for other tropical nations facing increasing dengue incidence.
AB - In 2017, a dengue epidemic of unexpected magnitude occurred in Sri Lanka. A total of 186,101 suspected cases and 440 dengue-related deaths occurred. We conducted a comprehensive analysis of this epidemic by comparing national surveillance data for 2017 with data from the preceding 5 years. In all Sri Lanka districts, dengue incidence in 2017 increased significantly over incidence during the previous 5 years. Older schoolchildren and young adults were more clinically symptomatic than those at extremes of age. Limited virologic surveillance showed the dominant circulating variant was dengue virus type 2 cosmopolitan genotype in the most affected district. One quarter of total annual cases were reported 5 weeks after the southwest monsoon started. Changes in vector abundance were not predictive of the increased incidence. Direct government expenditures on dengue control activities in 2017 were US $12.7 million. The lessons learned from this outbreak are useful for other tropical nations facing increasing dengue incidence.
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U2 - 10.3201/eid2604.190435
DO - 10.3201/eid2604.190435
M3 - Review article
C2 - 32186490
AN - SCOPUS:85082012285
VL - 26
SP - 682
EP - 691
JO - Emerging Infectious Diseases
JF - Emerging Infectious Diseases
SN - 1080-6040
IS - 4
ER -