According to the researchers that analyzed gene sequences collected across six decades, from 1956 to 2018, more than 100,000 cases of ). DENV-1, DENV-2, DENV-3, and DENV-4 are four related serotypes, or viral strains, that cause dengue illnesses. These serotypes interact differently with antibodies, which are substances produced by the human body’s immune system to… Read More »