Asymptomatic Dengue infections significantly contribute to disease transmission
Understanding asymptomatic dengue infections is essential for treating dengue fever as asymptomatic carriers play a vital role in spreading the infection as per a new study. Knowing the prevalence of asymptomatic carriers helps to levy the necessary control measures in health care centers at various levels.
The study results were published in the International Journal of Infectious Diseases.
Dengue infection, caused by DENV-infected female Aedes albopictus and Aedes aegypti mosquitoes, is clinically classified as either dengue with/without warning signs or severe dengue. It is a major public health concern. Asymptomatic dengue constitutes three-quarters of estimated DENV infections each year. Literature shows that asymptomatic infections are about 80% as infectious to mosquitoes as symptomatic dengue cases and about 88% of infections result from asymptomatic individuals. Due to the lack of summarized information on the actual prevalence of asymptomatic dengue cases, researchers from the Indian Council of Medical Research conducted a systematic review and meta-analysis to estimate the global prevalence of asymptomatic dengue infections.
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