Journal of Tropical Diseases and Parasitology ›› 2023, Vol. 21 ›› Issue (5): 267-272.doi: 10.3969/j.issn.1672-2302.2023.05.006

• SPECIAL ARTICLES ON PREVENTION AND CONTROL OF MOSQUITO-BORNE INFECTIOUS DISEASES • Previous Articles     Next Articles

Analysis on the clinical characteristics of the first dengue outbreak in Mengding Town in the border of China-Myanmar

SHEN Jiayuan1(), LI Chunmin1, DENG Wei2, TANG Yonglin3, ZHANG Guocheng4, YANG Zhongping1, YANG Mingdong1()   

  1. 1. International Joint Research Laboratory for Tropical Infectious Diseases of Yunnan Province, Yunnan Provincial Key Laboratory of Vector-borne Infectious Diseases Control and Research, Yunnan Provincial Innovative Team of Key Techniques for Vector Borne Disease Control and Prevention, Yunnan Institute of Parasitic Diseases, Pu'er 665000, Yunnan Province, China
    2. County Center for Disease Control and Prevention of Gengma
    3. Mengding Branch Center for Disease Control and Prevention of Gengma
    4. Second People's Hospital of Gengma County,;Town Health Center of Mengding
  • Received:2023-01-04 Online:2023-10-20 Published:2023-11-07
  • Contact: YANG Mingdong, E-mail: quanjueyang@163.com

Abstract:

Objective To analyze the clinical characteristics, diagnosis and treatment of the first outbreak of dengue in Mengding Town, Gengma County of Yunnan Province, located between the border of China and Myanmar, for reference for clinical treatment of this infection. Methods The case data were obtained from 174 patients admitted to and treated in the hospitals in Mengding Town of Gengma County in 2015, and retrospectively analyzed concerning the epidemiological characteristics, clinical symptoms, findings of laboratory tests and treatment outcomes of the infections. Results The 174 patients were all from Mengding Town of Gengma County, and respectively admitted to and treated in the Central Clinic of Mengding Town and Mengkang Hospital of Traditional Chinese Medicine. The infection occurred in between July and November. Ninety-nine (56.90%) were males, and 75 (43.10%) were females. The infection was most seen in patients aged between 18 and 35 years, accounting for 41.38% (72/174). Ethnic distribution and occupation were dominated by Han nationality (84.48%, 147/174) and farmers (68.97%, 120/174), respectively. The major clinical symptoms were associated with fever (93.10%, 162/174),aching muscles (70.69%, 123/174), chilly (63.22%, 110/174), fatigue (49.43%, 86/174) and headache (48.28%, 84/174). Laboratory studies indicated decreased white blood cell count in 89 patients (51.15%), platelet reduction in 121 (69.54%), elevated level of ALT, AST, LDH, α-HBDH, creatine kinase, creatine kinase isoenzyme, blood urea nitrogen, serum creatinine and blood uric acid was seen in 23 (13.22%), 70 (40.23%), 132 (75.86%), 80 (45.98%), 26 (14.94%), 38 (21.84%), 8 (4.60%), 27 (15.52%) and 22 patients (12.64%), respectively. Hypocalcemia was observed in 95 patients (54.60%). Both urine protein positive and urine occult blood positive occurred in 10 patients (5.75%). The mean hospital stay was (6.74±2.52) days, and the length of hospital stay was involved in the degree of fever and medication regimen. Conclusion The main symptoms of patients infected with dengue fever are associated with fever, aching muscles, chill, fatigue and headache. Typical skin rash may occur in some patients. Laboratory tests commonly reveal abnormal blood count as well as electrolyte and myocardial enzyme spectrum of liver and kidney function. Prevention of dengue fever epidemic is involved in enhanced early diagnosis and treatment, continuous improvement in and strengthened construction of the monitoring system for this infection.

Key words: Dengue fever, Outbreak, Clinical characteristics, China-Myanmar border area

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