The studies cited above clearly demonstrate the presence of WSSV in
wild P. monodon broods used in many hatcheries, along with the likelihood of vertical transmission to the PL. However, none of them attempt
to link the prevalence of infection to the origin of broods, with the
exception of Vaseeharan et al. (2003) which only does so as far as the
hatchery itself, and not to the fishery from which the spawners were
captured