Investigators in Bangladesh have detected the country’s first Zika virus cluster, which occurred in Dhaka, the country’s capital, according to study findings reported yesterday by the country’s International Centre for Diarrhoeal Disease Research, Bangladesh (ICCDR,B). The study was based on screening in 2023 of 154 patients from Dhaka who had fever or other Zika virus symptoms. The virus was present in five samples, which the team said should prompt wider screening to gauge the true burden of the Zika virus in the country. All five patients lived within 1 km of each other and had not traveled outside the country. One was co-infected with the dengue virus. Genetic sequencing determined that the viruses belonged to the Asian clade, which has been linked to microcephaly and other neurolog...