Saifullah Nabin, author of children's literature and painter, holds a creative mock-up of a mosquito to raise public awareness about dengue, a viral fever transmitted by Aedes mosquitoes, on Friday, Sept 3, 2021. Photo: Asif Mahmud Ove Saifullah Nabin, author of children's literature and painter, holds a creative mock-up of a mosquito to raise public awareness about dengue, a viral fever transmitted by Aedes mosquitoes, on Friday, Sept 3, 2021. Photo: Asif Mahmud Ove