Dead sardines continue to wash up along South Africa’s West Coast, and scientists are investigating what caused the mass mortality. Multiple outlets report that laboratory tests detect pilchard herpesvirus (PHV) genetic material in sardines linked to the recent die-off, including along the Western Cape coastline.
While PHV has been confirmed as present in samples, outlets stress that investigators have not yet established it as the definitive cause. Reporting highlights that the findings raise questions about other factors that may be contributing to outbreaks, including environmental stressors. The Department of Forestry, Fisheries and the Environment is mentioned as conducting or overseeing work to determine the cause and assess potential impacts.
Overall, the differing emphasis across outlets is on the confirmation process—such as genetic sequencing—and on whether the discovery is framed as a likely explanation versus an early lead that still requires further investigation into environmental conditions and other possible contributors.
