Although DENV-4 is the least frequently isolated serotype, has not been associated with severe dengue outbreaks, and is responsible for only 2% of dengue cases observed at the Queen Sirikit
Although DENV-4 is the least frequentlyisolated serotype, has not been associated with severedengue outbreaks, and is responsible for only 2% of denguecases observed at the Queen Sirikit