The recent surge in dengue cases globally, including in new regions has been alarming and poses significant global health challenges. The World Health Organization (WHO) forecasts the possibility of record-level cases this year due to global warming favouring disease-transmitting mosquitoes.
Dengue fever, caused by the dengue virus (DENV), is a highly prevalent infectious disease estimated to be infecting over 400 million people each year as per the WHO. DENV is an RNA virus of the Flaviviridae family with four serotypes (DENV-1 to 4). Infection with one serotype provides lifelong immunity to that type, but subsequent infections with different serotypes can lead to severe, life-threatening forms of the disease. There is no specific antiviral treatment for dengue, so prevention relies on controlling mosquito populations and raising public awareness. Despite global efforts, dengue cases continue to rise, with millions reported annually worldwide.