Dengue serotype 3 emerges as a major public health challenge as Nepal records more cases

Dengue was found in 54,630 persons and 88 persons have lost their lives to it in 2022: Ministry of Health and Population

NL Today

  • Read Time 2 min.

Kathmandu: Nepal has recorded more cases of dengue virus Serotype 3 (DENV3), a vector-borne disease, this year, according to the health authorities. 

The lab tests conducted at the National Public Health Laboratory, Teku, BP Koirala Institute of Health Sciences, Dharan and the Tribhuvan University’s lab showed more cases of dengue Serotype 3 this year compared to the previous years, according to Dr Gokarna Dahal, chief of Neglected Tropical Diseases (NTD) and Vector Borne Disease Control Section at Epidemiology and Diseases Control Division, Department of Health Services.     

Out of 334 tests conducted in three labs, the cases of Serotype 3 are 81 while six samples read the mixed type. 

Of the total 334 tests (272 at the National Public Health Laboratory (NPHL), Teku, 50 in Tribhuvan University Lab and 12 in Dharan), 81 cases (59 at NPHL, 17 at TU Lab and 5 in Dharan) are confirmed to have contracted serotype 3. Dengue was not detected in 126 tests for serotype 1, 29 for serotype 2, and 53 sample tests. 

Serotype 1 and 2 were found in sample tests carried out in 2019 by the Division, he said. 

Dengue virus is spread to people through the bites of infected Aedes species mosquitoes. Generally, DENV3 case appears in the re-infection of dengue virus. 

[Related: Dengue outbreak in Nepal: Deuba-led government’s flagrant indifference to curb the disease]

Infected people may have complicated health problems when they get infected a second time, according to Dr Bimal Chalise, chief consultant of the Shukraraj Tropical and Infectious Disease Hospital. “People infected with serotype 1 may develop complicated health problems as they are detected with serotype 2 and 3 after they are infected second time.”

Dengue was found in 54,630 persons and 88 persons have lost their lives to it in 2022. Chief of the Division’s Vector Borne Diseases Control Section Dr Dahal said dengue is seen in seven to eight persons a week on average as the disease has not come fully under control. 

The prevalence of dengue has increased over the years. Dengue was found in 32 persons in 2006, in 917 persons in 2010, in 686 persons in 2013, in 1,527 people in 2016, in 2,111 persons in 2017 and in 811 persons in 2018. The disease was found in 17, 992 people, the highest number, in 2019.Dengue cases are found in less numbers due to the outbreak of Covid-19 after that. It was found in 530 persons in 2020 and in 540 persons in 2021. (RSS)